nkeynes@103 | 1 | /**
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nkeynes@561 | 2 | * $Id$
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nkeynes@103 | 3 | *
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nkeynes@103 | 4 | * Texture cache. Responsible for maintaining a working set of OpenGL
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nkeynes@103 | 5 | * textures.
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nkeynes@103 | 6 | *
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nkeynes@103 | 7 | *
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nkeynes@103 | 8 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@103 | 9 | *
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nkeynes@103 | 10 | * This program is free software; you can redistribute it and/or modify
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nkeynes@103 | 11 | * it under the terms of the GNU General Public License as published by
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nkeynes@103 | 12 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@103 | 13 | * (at your option) any later version.
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nkeynes@103 | 14 | *
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nkeynes@103 | 15 | * This program is distributed in the hope that it will be useful,
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nkeynes@103 | 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@103 | 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@103 | 18 | * GNU General Public License for more details.
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nkeynes@103 | 19 | */
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nkeynes@103 | 20 |
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nkeynes@103 | 21 | #include <assert.h>
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nkeynes@647 | 22 | #include <string.h>
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nkeynes@103 | 23 | #include "pvr2/pvr2.h"
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nkeynes@677 | 24 | #include "pvr2/pvr2mmio.h"
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nkeynes@1140 | 25 | #include "pvr2/glutil.h"
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nkeynes@103 | 26 |
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nkeynes@103 | 27 | /** Specifies the maximum number of OpenGL
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nkeynes@103 | 28 | * textures we're willing to have open at a time. If more are
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nkeynes@103 | 29 | * needed, textures will be evicted in LRU order.
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nkeynes@103 | 30 | */
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nkeynes@349 | 31 | #define MAX_TEXTURES 256
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nkeynes@103 | 32 |
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nkeynes@103 | 33 | /**
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nkeynes@103 | 34 | * Data structure:
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nkeynes@103 | 35 | *
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nkeynes@103 | 36 | * Main operations:
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nkeynes@103 | 37 | * find entry by texture_addr
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nkeynes@103 | 38 | * add new entry
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nkeynes@103 | 39 | * move entry to tail of lru list
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nkeynes@103 | 40 | * remove entry
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nkeynes@103 | 41 | */
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nkeynes@103 | 42 |
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nkeynes@103 | 43 | typedef signed short texcache_entry_index;
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nkeynes@462 | 44 | #define EMPTY_ENTRY -1
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nkeynes@103 | 45 |
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nkeynes@107 | 46 | static texcache_entry_index texcache_free_ptr = 0;
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nkeynes@103 | 47 | static GLuint texcache_free_list[MAX_TEXTURES];
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nkeynes@103 | 48 |
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nkeynes@103 | 49 | typedef struct texcache_entry {
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nkeynes@103 | 50 | uint32_t texture_addr;
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nkeynes@1135 | 51 | uint32_t poly2_mode, tex_mode;
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nkeynes@103 | 52 | GLuint texture_id;
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nkeynes@856 | 53 | render_buffer_t buffer;
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nkeynes@103 | 54 | texcache_entry_index next;
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nkeynes@103 | 55 | uint32_t lru_count;
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nkeynes@103 | 56 | } *texcache_entry_t;
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nkeynes@103 | 57 |
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nkeynes@462 | 58 | static texcache_entry_index texcache_page_lookup[PVR2_RAM_PAGES];
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nkeynes@103 | 59 | static uint32_t texcache_ref_counter;
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nkeynes@103 | 60 | static struct texcache_entry texcache_active_list[MAX_TEXTURES];
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nkeynes@886 | 61 | static uint32_t texcache_palette_mode;
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nkeynes@886 | 62 | static uint32_t texcache_stride_width;
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nkeynes@1140 | 63 | static gboolean texcache_have_palette_shader;
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nkeynes@1140 | 64 | static gboolean texcache_palette_valid;
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nkeynes@1140 | 65 | static GLuint texcache_palette_texid;
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nkeynes@103 | 66 |
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nkeynes@103 | 67 | /**
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nkeynes@108 | 68 | * Initialize the texture cache.
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nkeynes@103 | 69 | */
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nkeynes@103 | 70 | void texcache_init( )
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nkeynes@103 | 71 | {
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nkeynes@103 | 72 | int i;
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nkeynes@103 | 73 | for( i=0; i<PVR2_RAM_PAGES; i++ ) {
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nkeynes@736 | 74 | texcache_page_lookup[i] = EMPTY_ENTRY;
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nkeynes@103 | 75 | }
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nkeynes@103 | 76 | for( i=0; i<MAX_TEXTURES; i++ ) {
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nkeynes@736 | 77 | texcache_free_list[i] = i;
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nkeynes@736 | 78 | texcache_active_list[i].texture_addr = -1;
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nkeynes@856 | 79 | texcache_active_list[i].buffer = NULL;
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nkeynes@736 | 80 | texcache_active_list[i].next = EMPTY_ENTRY;
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nkeynes@103 | 81 | }
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nkeynes@103 | 82 | texcache_free_ptr = 0;
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nkeynes@103 | 83 | texcache_ref_counter = 0;
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nkeynes@1140 | 84 | texcache_palette_mode = -1;
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nkeynes@886 | 85 | texcache_stride_width = 0;
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nkeynes@103 | 86 | }
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nkeynes@103 | 87 |
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nkeynes@103 | 88 | /**
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nkeynes@108 | 89 | * Setup the initial texture ids (must be called after the GL context is
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nkeynes@108 | 90 | * prepared)
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nkeynes@108 | 91 | */
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nkeynes@1233 | 92 | void texcache_gl_init( gboolean withShaders )
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nkeynes@108 | 93 | {
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nkeynes@108 | 94 | int i;
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nkeynes@108 | 95 | GLuint texids[MAX_TEXTURES];
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nkeynes@108 | 96 |
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nkeynes@1233 | 97 | if( withShaders ) {
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nkeynes@1140 | 98 | texcache_have_palette_shader = TRUE;
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nkeynes@1140 | 99 | texcache_palette_valid = FALSE;
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nkeynes@1140 | 100 | glGenTextures(1, &texcache_palette_texid );
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nkeynes@1140 | 101 |
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nkeynes@1140 | 102 | /* Bind the texture and set the params */
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nkeynes@1140 | 103 | glActiveTexture(GL_TEXTURE1);
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nkeynes@1221 | 104 | glBindTexture(GL_TEXTURE_2D, texcache_palette_texid);
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nkeynes@1221 | 105 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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nkeynes@1221 | 106 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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nkeynes@1221 | 107 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
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nkeynes@1140 | 108 | glActiveTexture(GL_TEXTURE0);
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nkeynes@1140 | 109 |
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nkeynes@1140 | 110 | } else {
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nkeynes@1140 | 111 | texcache_have_palette_shader = FALSE;
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nkeynes@1140 | 112 | }
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nkeynes@1140 | 113 |
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nkeynes@108 | 114 | glGenTextures( MAX_TEXTURES, texids );
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nkeynes@108 | 115 | for( i=0; i<MAX_TEXTURES; i++ ) {
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nkeynes@736 | 116 | texcache_active_list[i].texture_id = texids[i];
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nkeynes@108 | 117 | }
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nkeynes@108 | 118 | }
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nkeynes@108 | 119 |
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nkeynes@856 | 120 | void texcache_release_render_buffer( render_buffer_t buffer )
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nkeynes@856 | 121 | {
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nkeynes@856 | 122 | if( !buffer->flushed )
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nkeynes@856 | 123 | pvr2_render_buffer_copy_to_sh4(buffer);
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nkeynes@856 | 124 | pvr2_destroy_render_buffer(buffer);
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nkeynes@856 | 125 | }
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nkeynes@856 | 126 |
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nkeynes@108 | 127 | /**
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nkeynes@103 | 128 | * Flush all textures from the cache, returning them to the free list.
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nkeynes@103 | 129 | */
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nkeynes@103 | 130 | void texcache_flush( )
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nkeynes@103 | 131 | {
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nkeynes@103 | 132 | int i;
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nkeynes@103 | 133 | /* clear structures */
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nkeynes@103 | 134 | for( i=0; i<PVR2_RAM_PAGES; i++ ) {
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nkeynes@736 | 135 | texcache_page_lookup[i] = EMPTY_ENTRY;
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nkeynes@103 | 136 | }
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nkeynes@103 | 137 | for( i=0; i<MAX_TEXTURES; i++ ) {
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nkeynes@736 | 138 | texcache_free_list[i] = i;
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nkeynes@736 | 139 | texcache_active_list[i].next = EMPTY_ENTRY;
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nkeynes@886 | 140 | texcache_active_list[i].texture_addr = -1;
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nkeynes@856 | 141 | if( texcache_active_list[i].buffer != NULL ) {
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nkeynes@856 | 142 | texcache_release_render_buffer(texcache_active_list[i].buffer);
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nkeynes@856 | 143 | texcache_active_list[i].buffer = NULL;
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nkeynes@856 | 144 | }
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nkeynes@103 | 145 | }
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nkeynes@103 | 146 | texcache_free_ptr = 0;
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nkeynes@103 | 147 | texcache_ref_counter = 0;
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nkeynes@103 | 148 | }
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nkeynes@103 | 149 |
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nkeynes@103 | 150 | /**
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nkeynes@103 | 151 | * Flush all textures and delete. The cache will be non-functional until
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nkeynes@103 | 152 | * the next call to texcache_init(). This would typically be done if
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nkeynes@103 | 153 | * switching GL targets.
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nkeynes@103 | 154 | */
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nkeynes@103 | 155 | void texcache_shutdown( )
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nkeynes@103 | 156 | {
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nkeynes@103 | 157 | GLuint texids[MAX_TEXTURES];
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nkeynes@103 | 158 | int i;
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nkeynes@103 | 159 | texcache_flush();
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nkeynes@736 | 160 |
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nkeynes@1140 | 161 | if( texcache_have_palette_shader )
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nkeynes@1140 | 162 | glDeleteTextures( 1, &texcache_palette_texid );
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nkeynes@1140 | 163 |
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nkeynes@103 | 164 | for( i=0; i<MAX_TEXTURES; i++ ) {
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nkeynes@736 | 165 | texids[i] = texcache_active_list[i].texture_id;
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nkeynes@103 | 166 | }
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nkeynes@103 | 167 | glDeleteTextures( MAX_TEXTURES, texids );
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nkeynes@103 | 168 | }
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nkeynes@103 | 169 |
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nkeynes@337 | 170 | static void texcache_evict( int slot )
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nkeynes@103 | 171 | {
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nkeynes@103 | 172 | /* Remove the selected slot from the lookup table */
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nkeynes@462 | 173 | assert( texcache_active_list[slot].texture_addr != -1 );
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nkeynes@270 | 174 | uint32_t evict_page = texcache_active_list[slot].texture_addr >> 12;
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nkeynes@103 | 175 | texcache_entry_index replace_next = texcache_active_list[slot].next;
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nkeynes@337 | 176 | texcache_active_list[slot].texture_addr = -1;
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nkeynes@103 | 177 | texcache_active_list[slot].next = EMPTY_ENTRY; /* Just for safety */
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nkeynes@856 | 178 | if( texcache_active_list[slot].buffer != NULL ) {
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nkeynes@856 | 179 | texcache_release_render_buffer(texcache_active_list[slot].buffer);
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nkeynes@856 | 180 | texcache_active_list[slot].buffer = NULL;
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nkeynes@856 | 181 | }
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nkeynes@103 | 182 | if( texcache_page_lookup[evict_page] == slot ) {
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nkeynes@736 | 183 | texcache_page_lookup[evict_page] = replace_next;
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nkeynes@103 | 184 | } else {
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nkeynes@736 | 185 | texcache_entry_index idx = texcache_page_lookup[evict_page];
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nkeynes@736 | 186 | texcache_entry_index next;
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nkeynes@736 | 187 | do {
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nkeynes@736 | 188 | next = texcache_active_list[idx].next;
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nkeynes@736 | 189 | if( next == slot ) {
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nkeynes@736 | 190 | assert( idx != replace_next );
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nkeynes@736 | 191 | texcache_active_list[idx].next = replace_next;
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nkeynes@736 | 192 | break;
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nkeynes@736 | 193 | }
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nkeynes@736 | 194 | idx = next;
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nkeynes@736 | 195 | } while( next != EMPTY_ENTRY );
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nkeynes@103 | 196 | }
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nkeynes@337 | 197 | }
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nkeynes@337 | 198 |
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nkeynes@337 | 199 | /**
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nkeynes@337 | 200 | * Evict a single texture from the cache.
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nkeynes@337 | 201 | * @return the slot of the evicted texture.
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nkeynes@337 | 202 | */
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nkeynes@337 | 203 | static texcache_entry_index texcache_evict_lru( void )
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nkeynes@337 | 204 | {
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nkeynes@337 | 205 | /* Full table scan - take over the entry with the lowest lru value */
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nkeynes@337 | 206 | texcache_entry_index slot = 0;
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nkeynes@337 | 207 | int lru_value = texcache_active_list[0].lru_count;
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nkeynes@337 | 208 | int i;
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nkeynes@337 | 209 | for( i=1; i<MAX_TEXTURES; i++ ) {
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nkeynes@736 | 210 | /* FIXME: account for rollover */
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nkeynes@736 | 211 | if( texcache_active_list[i].lru_count < lru_value ) {
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nkeynes@736 | 212 | slot = i;
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nkeynes@736 | 213 | lru_value = texcache_active_list[i].lru_count;
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nkeynes@736 | 214 | }
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nkeynes@337 | 215 | }
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nkeynes@337 | 216 | texcache_evict(slot);
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nkeynes@736 | 217 |
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nkeynes@103 | 218 | return slot;
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nkeynes@103 | 219 | }
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nkeynes@103 | 220 |
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nkeynes@337 | 221 | /**
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nkeynes@337 | 222 | * Evict all textures contained in the page identified by a texture address.
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nkeynes@337 | 223 | */
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nkeynes@337 | 224 | void texcache_invalidate_page( uint32_t texture_addr ) {
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nkeynes@337 | 225 | uint32_t texture_page = texture_addr >> 12;
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nkeynes@337 | 226 | texcache_entry_index idx = texcache_page_lookup[texture_page];
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nkeynes@337 | 227 | if( idx == EMPTY_ENTRY )
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nkeynes@736 | 228 | return;
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nkeynes@337 | 229 | assert( texcache_free_ptr >= 0 );
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nkeynes@337 | 230 | do {
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nkeynes@736 | 231 | texcache_entry_t entry = &texcache_active_list[idx];
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nkeynes@736 | 232 | entry->texture_addr = -1;
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nkeynes@856 | 233 | if( entry->buffer != NULL ) {
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nkeynes@856 | 234 | texcache_release_render_buffer(entry->buffer);
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nkeynes@856 | 235 | entry->buffer = NULL;
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nkeynes@856 | 236 | }
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nkeynes@736 | 237 | /* release entry */
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nkeynes@736 | 238 | texcache_free_ptr--;
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nkeynes@736 | 239 | texcache_free_list[texcache_free_ptr] = idx;
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nkeynes@736 | 240 | idx = entry->next;
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nkeynes@736 | 241 | entry->next = EMPTY_ENTRY;
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nkeynes@337 | 242 | } while( idx != EMPTY_ENTRY );
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nkeynes@337 | 243 | texcache_page_lookup[texture_page] = EMPTY_ENTRY;
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nkeynes@337 | 244 | }
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nkeynes@337 | 245 |
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nkeynes@337 | 246 | /**
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nkeynes@1140 | 247 | * Load the palette into 4 textures of 256 entries each. This mirrors the
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nkeynes@1140 | 248 | * banking done by the PVR2 for 8-bit textures, and also ensures that we
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nkeynes@1140 | 249 | * can use 8-bit paletted textures ourselves.
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nkeynes@1140 | 250 | */
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nkeynes@1140 | 251 | static void texcache_load_palette_texture( gboolean format_changed )
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nkeynes@1140 | 252 | {
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nkeynes@1140 | 253 | GLint format, type, intFormat = GL_RGBA;
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nkeynes@1140 | 254 | unsigned i;
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nkeynes@1140 | 255 | int bpp = 2;
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nkeynes@1140 | 256 | uint32_t *palette = (uint32_t *)mmio_region_PVR2PAL.mem;
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nkeynes@1140 | 257 | uint16_t packed_palette[1024];
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nkeynes@1140 | 258 | char *data = (char *)palette;
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nkeynes@1140 | 259 |
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nkeynes@1140 | 260 | switch( texcache_palette_mode ) {
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nkeynes@1140 | 261 | case 0: /* ARGB1555 */
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nkeynes@1140 | 262 | format = GL_BGRA;
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nkeynes@1140 | 263 | type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
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nkeynes@1140 | 264 | break;
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nkeynes@1140 | 265 | case 1: /* RGB565 */
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nkeynes@1140 | 266 | intFormat = GL_RGB;
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nkeynes@1140 | 267 | format = GL_RGB;
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nkeynes@1140 | 268 | type = GL_UNSIGNED_SHORT_5_6_5;
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nkeynes@1140 | 269 | break;
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nkeynes@1140 | 270 | case 2: /* ARGB4444 */
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nkeynes@1140 | 271 | format = GL_BGRA;
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nkeynes@1140 | 272 | type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
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nkeynes@1140 | 273 | break;
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nkeynes@1140 | 274 | case 3: /* ARGB8888 */
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nkeynes@1140 | 275 | format = GL_BGRA;
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nkeynes@1140 | 276 | type = GL_UNSIGNED_BYTE;
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nkeynes@1140 | 277 | bpp = 4;
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nkeynes@1140 | 278 | break;
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nkeynes@1140 | 279 | default:
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nkeynes@1140 | 280 | break; /* Can't happen */
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nkeynes@1140 | 281 | }
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nkeynes@1140 | 282 |
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nkeynes@1140 | 283 |
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nkeynes@1140 | 284 | if( bpp == 2 ) {
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nkeynes@1140 | 285 | for( i=0; i<1024; i++ ) {
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nkeynes@1140 | 286 | packed_palette[i] = (uint16_t)palette[i];
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nkeynes@1140 | 287 | }
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nkeynes@1140 | 288 | data = (char *)packed_palette;
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nkeynes@1140 | 289 |
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nkeynes@1140 | 290 | }
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nkeynes@1140 | 291 |
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nkeynes@1140 | 292 | glActiveTexture(GL_TEXTURE1);
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nkeynes@1140 | 293 | if( format_changed )
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nkeynes@1221 | 294 | glTexImage2D(GL_TEXTURE_2D, 0, intFormat, 1024, 1, 0, format, type, data );
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nkeynes@1140 | 295 | else
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nkeynes@1221 | 296 | glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1024, 1, format, type, data);
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nkeynes@1140 | 297 | glActiveTexture(GL_TEXTURE0);
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nkeynes@1140 | 298 | texcache_palette_valid = TRUE;
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nkeynes@1140 | 299 | }
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nkeynes@1140 | 300 |
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nkeynes@1140 | 301 |
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nkeynes@1140 | 302 | /**
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nkeynes@1140 | 303 | * Mark the palette as having changed. If we have palette support (via shaders)
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nkeynes@1140 | 304 | * we just flag the palette, otherwise we have to invalidate all palette
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nkeynes@1140 | 305 | * textures.
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nkeynes@337 | 306 | */
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nkeynes@337 | 307 | void texcache_invalidate_palette( )
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nkeynes@337 | 308 | {
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nkeynes@1140 | 309 | if( texcache_have_palette_shader ) {
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nkeynes@1140 | 310 | texcache_palette_valid = FALSE;
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nkeynes@1140 | 311 | } else {
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nkeynes@1140 | 312 | int i;
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nkeynes@1140 | 313 | for( i=0; i<MAX_TEXTURES; i++ ) {
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nkeynes@1140 | 314 | if( texcache_active_list[i].texture_addr != -1 &&
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nkeynes@1140 | 315 | PVR2_TEX_IS_PALETTE(texcache_active_list[i].tex_mode) ) {
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nkeynes@1140 | 316 | texcache_evict( i );
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nkeynes@1140 | 317 | texcache_free_ptr--;
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nkeynes@1140 | 318 | texcache_free_list[texcache_free_ptr] = i;
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nkeynes@1140 | 319 | }
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nkeynes@736 | 320 | }
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nkeynes@337 | 321 | }
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nkeynes@337 | 322 | }
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nkeynes@886 | 323 | /**
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nkeynes@886 | 324 | * Mark all stride textures as needing a re-read (ie when the stride width
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nkeynes@886 | 325 | * is changed).
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nkeynes@886 | 326 | */
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nkeynes@886 | 327 | void texcache_invalidate_stride( )
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nkeynes@886 | 328 | {
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nkeynes@886 | 329 | int i;
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nkeynes@886 | 330 | for( i=0; i<MAX_TEXTURES; i++ ) {
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nkeynes@886 | 331 | if( texcache_active_list[i].texture_addr != -1 &&
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nkeynes@1135 | 332 | PVR2_TEX_IS_STRIDE(texcache_active_list[i].tex_mode) ) {
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nkeynes@886 | 333 | texcache_evict( i );
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nkeynes@886 | 334 | texcache_free_ptr--;
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nkeynes@886 | 335 | texcache_free_list[texcache_free_ptr] = i;
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nkeynes@886 | 336 | }
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nkeynes@886 | 337 | }
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nkeynes@886 | 338 | }
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nkeynes@886 | 339 |
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nkeynes@1135 | 340 | void texcache_begin_scene( uint32_t palette_mode, uint32_t stride )
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nkeynes@886 | 341 | {
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nkeynes@1140 | 342 | gboolean format_changed = FALSE;
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nkeynes@1140 | 343 | if( palette_mode != texcache_palette_mode ) {
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nkeynes@886 | 344 | texcache_invalidate_palette();
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nkeynes@1140 | 345 | format_changed = TRUE;
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nkeynes@1140 | 346 | }
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nkeynes@886 | 347 | if( stride != texcache_stride_width )
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nkeynes@886 | 348 | texcache_invalidate_stride();
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nkeynes@886 | 349 |
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nkeynes@886 | 350 | texcache_palette_mode = palette_mode;
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nkeynes@886 | 351 | texcache_stride_width = stride;
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nkeynes@1140 | 352 |
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nkeynes@1140 | 353 | if( !texcache_palette_valid && texcache_have_palette_shader )
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nkeynes@1140 | 354 | texcache_load_palette_texture(format_changed);
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nkeynes@886 | 355 | }
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nkeynes@337 | 356 |
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nkeynes@311 | 357 | static void decode_pal8_to_32( uint32_t *out, uint8_t *in, int inbytes, uint32_t *pal )
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nkeynes@311 | 358 | {
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nkeynes@311 | 359 | int i;
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nkeynes@311 | 360 | for( i=0; i<inbytes; i++ ) {
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nkeynes@736 | 361 | *out++ = pal[*in++];
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nkeynes@129 | 362 | }
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nkeynes@129 | 363 | }
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nkeynes@129 | 364 |
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nkeynes@321 | 365 | static void decode_pal8_to_16( uint16_t *out, uint8_t *in, int inbytes, uint32_t *pal )
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nkeynes@311 | 366 | {
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nkeynes@311 | 367 | int i;
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nkeynes@311 | 368 | for( i=0; i<inbytes; i++ ) {
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nkeynes@736 | 369 | *out++ = (uint16_t)pal[*in++];
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nkeynes@113 | 370 | }
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nkeynes@113 | 371 | }
|
nkeynes@113 | 372 |
|
nkeynes@315 | 373 | static void decode_pal4_to_32( uint32_t *out, uint8_t *in, int inbytes, uint32_t *pal )
|
nkeynes@315 | 374 | {
|
nkeynes@315 | 375 | int i;
|
nkeynes@315 | 376 | for( i=0; i<inbytes; i++ ) {
|
nkeynes@736 | 377 | *out++ = pal[*in & 0x0F];
|
nkeynes@736 | 378 | *out++ = pal[(*in >> 4)];
|
nkeynes@736 | 379 | in++;
|
nkeynes@315 | 380 | }
|
nkeynes@315 | 381 | }
|
nkeynes@315 | 382 |
|
nkeynes@1140 | 383 | static void decode_pal4_to_pal8( uint8_t *out, uint8_t *in, int inbytes )
|
nkeynes@1140 | 384 | {
|
nkeynes@1140 | 385 | int i;
|
nkeynes@1140 | 386 | for( i=0; i<inbytes; i++ ) {
|
nkeynes@1140 | 387 | *out++ = (uint8_t)(*in & 0x0F);
|
nkeynes@1140 | 388 | *out++ = (uint8_t)(*in >> 4);
|
nkeynes@1140 | 389 | in++;
|
nkeynes@1140 | 390 | }
|
nkeynes@1140 | 391 | }
|
nkeynes@1140 | 392 |
|
nkeynes@1140 | 393 |
|
nkeynes@315 | 394 |
|
nkeynes@321 | 395 | static void decode_pal4_to_16( uint16_t *out, uint8_t *in, int inbytes, uint32_t *pal )
|
nkeynes@315 | 396 | {
|
nkeynes@315 | 397 | int i;
|
nkeynes@315 | 398 | for( i=0; i<inbytes; i++ ) {
|
nkeynes@736 | 399 | *out++ = (uint16_t)pal[*in & 0x0F];
|
nkeynes@736 | 400 | *out++ = (uint16_t)pal[(*in >> 4)];
|
nkeynes@736 | 401 | in++;
|
nkeynes@315 | 402 | }
|
nkeynes@315 | 403 | }
|
nkeynes@315 | 404 |
|
nkeynes@224 | 405 | #define VQ_CODEBOOK_SIZE 2048 /* 256 entries * 4 pixels per quad * 2 byte pixels */
|
nkeynes@224 | 406 |
|
nkeynes@224 | 407 | struct vq_codebook {
|
nkeynes@224 | 408 | uint16_t quad[256][4];
|
nkeynes@224 | 409 | };
|
nkeynes@224 | 410 |
|
nkeynes@270 | 411 | static void vq_get_codebook( struct vq_codebook *codebook,
|
nkeynes@736 | 412 | uint16_t *input )
|
nkeynes@270 | 413 | {
|
nkeynes@270 | 414 | /* Detwiddle the codebook, for the sake of my own sanity if nothing else */
|
nkeynes@270 | 415 | uint16_t *p = (uint16_t *)input;
|
nkeynes@270 | 416 | int i;
|
nkeynes@270 | 417 | for( i=0; i<256; i++ ) {
|
nkeynes@736 | 418 | codebook->quad[i][0] = *p++;
|
nkeynes@736 | 419 | codebook->quad[i][2] = *p++;
|
nkeynes@736 | 420 | codebook->quad[i][1] = *p++;
|
nkeynes@736 | 421 | codebook->quad[i][3] = *p++;
|
nkeynes@270 | 422 | }
|
nkeynes@270 | 423 | }
|
nkeynes@270 | 424 |
|
nkeynes@429 | 425 | static void vq_decode( uint16_t *output, unsigned char *input, int width, int height,
|
nkeynes@736 | 426 | struct vq_codebook *codebook ) {
|
nkeynes@224 | 427 | int i,j;
|
nkeynes@736 | 428 |
|
nkeynes@270 | 429 | uint8_t *c = (uint8_t *)input;
|
nkeynes@311 | 430 | for( j=0; j<height; j+=2 ) {
|
nkeynes@736 | 431 | for( i=0; i<width; i+=2 ) {
|
nkeynes@736 | 432 | uint8_t code = *c++;
|
nkeynes@736 | 433 | output[i + j*width] = codebook->quad[code][0];
|
nkeynes@736 | 434 | output[i + 1 + j*width] = codebook->quad[code][1];
|
nkeynes@736 | 435 | output[i + (j+1)*width] = codebook->quad[code][2];
|
nkeynes@736 | 436 | output[i + 1 + (j+1)*width] = codebook->quad[code][3];
|
nkeynes@736 | 437 | }
|
nkeynes@224 | 438 | }
|
nkeynes@224 | 439 | }
|
nkeynes@113 | 440 |
|
nkeynes@282 | 441 | static inline uint32_t yuv_to_rgb32( float y, float u, float v )
|
nkeynes@282 | 442 | {
|
nkeynes@282 | 443 | u -= 128;
|
nkeynes@282 | 444 | v -= 128;
|
nkeynes@282 | 445 | int r = (int)(y + v*1.375);
|
nkeynes@282 | 446 | int g = (int)(y - u*0.34375 - v*0.6875);
|
nkeynes@282 | 447 | int b = (int)(y + u*1.71875);
|
nkeynes@282 | 448 | if( r > 255 ) { r = 255; } else if( r < 0 ) { r = 0; }
|
nkeynes@282 | 449 | if( g > 255 ) { g = 255; } else if( g < 0 ) { g = 0; }
|
nkeynes@282 | 450 | if( b > 255 ) { b = 255; } else if( b < 0 ) { b = 0; }
|
nkeynes@289 | 451 | return 0xFF000000 | (r<<16) | (g<<8) | (b);
|
nkeynes@282 | 452 | }
|
nkeynes@282 | 453 |
|
nkeynes@282 | 454 |
|
nkeynes@282 | 455 | /**
|
nkeynes@311 | 456 | * Convert raster YUV texture data into RGB32 data - most GL implementations don't
|
nkeynes@282 | 457 | * directly support this format unfortunately. The input data is formatted as
|
nkeynes@282 | 458 | * 32 bits = 2 horizontal pixels, UYVY. This is currently done rather inefficiently
|
nkeynes@282 | 459 | * in floating point.
|
nkeynes@282 | 460 | */
|
nkeynes@311 | 461 | static void yuv_decode( uint32_t *output, uint32_t *input, int width, int height )
|
nkeynes@282 | 462 | {
|
nkeynes@282 | 463 | int x, y;
|
nkeynes@282 | 464 | uint32_t *p = input;
|
nkeynes@282 | 465 | for( y=0; y<height; y++ ) {
|
nkeynes@736 | 466 | for( x=0; x<width; x+=2 ) {
|
nkeynes@736 | 467 | float u = (float)(*p & 0xFF);
|
nkeynes@736 | 468 | float y0 = (float)( (*p>>8)&0xFF );
|
nkeynes@736 | 469 | float v = (float)( (*p>>16)&0xFF );
|
nkeynes@736 | 470 | float y1 = (float)( (*p>>24)&0xFF );
|
nkeynes@736 | 471 | *output++ = yuv_to_rgb32( y0, u, v );
|
nkeynes@736 | 472 | *output++ = yuv_to_rgb32( y1, u, v );
|
nkeynes@736 | 473 | p++;
|
nkeynes@736 | 474 | }
|
nkeynes@282 | 475 | }
|
nkeynes@282 | 476 | }
|
nkeynes@282 | 477 |
|
nkeynes@856 | 478 | static gboolean is_npot_texture( int width )
|
nkeynes@856 | 479 | {
|
nkeynes@856 | 480 | while( width != 0 ) {
|
nkeynes@856 | 481 | if( width & 1 )
|
nkeynes@856 | 482 | return width != 1;
|
nkeynes@856 | 483 | width >>= 1;
|
nkeynes@856 | 484 | }
|
nkeynes@856 | 485 | return TRUE;
|
nkeynes@856 | 486 | }
|
nkeynes@856 | 487 |
|
nkeynes@103 | 488 | /**
|
nkeynes@103 | 489 | * Load texture data from the given address and parameters into the currently
|
nkeynes@103 | 490 | * bound OpenGL texture.
|
nkeynes@103 | 491 | */
|
nkeynes@429 | 492 | static void texcache_load_texture( uint32_t texture_addr, int width, int height,
|
nkeynes@736 | 493 | int mode ) {
|
nkeynes@284 | 494 | int bpp_shift = 1; /* bytes per (output) pixel as a power of 2 */
|
nkeynes@349 | 495 | GLint intFormat = GL_RGBA, format, type;
|
nkeynes@108 | 496 | int tex_format = mode & PVR2_TEX_FORMAT_MASK;
|
nkeynes@270 | 497 | struct vq_codebook codebook;
|
nkeynes@1140 | 498 | GLint min_filter = GL_LINEAR;
|
nkeynes@1140 | 499 | GLint max_filter = GL_LINEAR;
|
nkeynes@1140 | 500 | GLint mipmapfilter = GL_LINEAR_MIPMAP_LINEAR;
|
nkeynes@108 | 501 |
|
nkeynes@270 | 502 | /* Decode the format parameters */
|
nkeynes@270 | 503 | switch( tex_format ) {
|
nkeynes@270 | 504 | case PVR2_TEX_FORMAT_IDX4:
|
nkeynes@270 | 505 | case PVR2_TEX_FORMAT_IDX8:
|
nkeynes@1140 | 506 | if( texcache_have_palette_shader ) {
|
nkeynes@1221 | 507 | intFormat = GL_ALPHA;
|
nkeynes@1140 | 508 | format = GL_ALPHA;
|
nkeynes@736 | 509 | type = GL_UNSIGNED_BYTE;
|
nkeynes@1140 | 510 | bpp_shift = 0;
|
nkeynes@1140 | 511 | min_filter = max_filter = GL_NEAREST;
|
nkeynes@1140 | 512 | mipmapfilter = GL_NEAREST_MIPMAP_NEAREST;
|
nkeynes@1140 | 513 | } else {
|
nkeynes@1140 | 514 | /* For indexed-colour modes, we need to lookup the palette control
|
nkeynes@1140 | 515 | * word to determine the de-indexed texture format.
|
nkeynes@1140 | 516 | */
|
nkeynes@1140 | 517 | switch( texcache_palette_mode ) {
|
nkeynes@1140 | 518 | case 0: /* ARGB1555 */
|
nkeynes@1140 | 519 | format = GL_BGRA;
|
nkeynes@1140 | 520 | type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
|
nkeynes@1140 | 521 | break;
|
nkeynes@1140 | 522 | case 1: /* RGB565 */
|
nkeynes@1140 | 523 | intFormat = GL_RGB;
|
nkeynes@1140 | 524 | format = GL_RGB;
|
nkeynes@1140 | 525 | type = GL_UNSIGNED_SHORT_5_6_5;
|
nkeynes@1140 | 526 | break;
|
nkeynes@1140 | 527 | case 2: /* ARGB4444 */
|
nkeynes@1140 | 528 | format = GL_BGRA;
|
nkeynes@1140 | 529 | type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
|
nkeynes@1140 | 530 | break;
|
nkeynes@1140 | 531 | case 3: /* ARGB8888 */
|
nkeynes@1140 | 532 | format = GL_BGRA;
|
nkeynes@1140 | 533 | type = GL_UNSIGNED_BYTE;
|
nkeynes@1140 | 534 | bpp_shift = 2;
|
nkeynes@1140 | 535 | break;
|
nkeynes@1140 | 536 | default:
|
nkeynes@1140 | 537 | return; /* Can't happen, but it makes gcc stop complaining */
|
nkeynes@1140 | 538 | }
|
nkeynes@736 | 539 | }
|
nkeynes@736 | 540 | break;
|
nkeynes@736 | 541 |
|
nkeynes@860 | 542 | default:
|
nkeynes@736 | 543 | case PVR2_TEX_FORMAT_ARGB1555:
|
nkeynes@736 | 544 | format = GL_BGRA;
|
nkeynes@736 | 545 | type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
|
nkeynes@736 | 546 | break;
|
nkeynes@736 | 547 | case PVR2_TEX_FORMAT_RGB565:
|
nkeynes@736 | 548 | intFormat = GL_RGB;
|
nkeynes@736 | 549 | format = GL_RGB;
|
nkeynes@736 | 550 | type = GL_UNSIGNED_SHORT_5_6_5;
|
nkeynes@736 | 551 | break;
|
nkeynes@736 | 552 | case PVR2_TEX_FORMAT_ARGB4444:
|
nkeynes@736 | 553 | format = GL_BGRA;
|
nkeynes@736 | 554 | type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
|
nkeynes@736 | 555 | break;
|
nkeynes@736 | 556 | case PVR2_TEX_FORMAT_YUV422:
|
nkeynes@736 | 557 | /* YUV422 isn't directly supported by most implementations, so decode
|
nkeynes@736 | 558 | * it to a (reasonably) standard ARGB32.
|
nkeynes@736 | 559 | */
|
nkeynes@736 | 560 | bpp_shift = 2;
|
nkeynes@736 | 561 | format = GL_BGRA;
|
nkeynes@736 | 562 | type = GL_UNSIGNED_BYTE;
|
nkeynes@736 | 563 | break;
|
nkeynes@736 | 564 | case PVR2_TEX_FORMAT_BUMPMAP:
|
nkeynes@860 | 565 | WARN( "Bumpmap not supported" );
|
nkeynes@736 | 566 | return;
|
nkeynes@270 | 567 | }
|
nkeynes@736 | 568 |
|
nkeynes@321 | 569 | if( PVR2_TEX_IS_STRIDE(mode) && tex_format != PVR2_TEX_FORMAT_IDX4 &&
|
nkeynes@736 | 570 | tex_format != PVR2_TEX_FORMAT_IDX8 ) {
|
nkeynes@736 | 571 | /* Stride textures cannot be mip-mapped, compressed, indexed or twiddled */
|
nkeynes@736 | 572 | unsigned char data[(width*height) << bpp_shift];
|
nkeynes@736 | 573 | if( tex_format == PVR2_TEX_FORMAT_YUV422 ) {
|
nkeynes@736 | 574 | unsigned char tmp[(width*height)<<1];
|
nkeynes@886 | 575 | pvr2_vram64_read_stride( tmp, width<<1, texture_addr, texcache_stride_width<<1, height );
|
nkeynes@736 | 576 | yuv_decode( (uint32_t *)data, (uint32_t *)tmp, width, height );
|
nkeynes@736 | 577 | } else {
|
nkeynes@886 | 578 | pvr2_vram64_read_stride( data, width<<bpp_shift, texture_addr, texcache_stride_width<<bpp_shift, height );
|
nkeynes@736 | 579 | }
|
nkeynes@736 | 580 | glTexImage2D( GL_TEXTURE_2D, 0, intFormat, width, height, 0, format, type, data );
|
nkeynes@1140 | 581 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, min_filter);
|
nkeynes@1140 | 582 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, max_filter);
|
nkeynes@736 | 583 | return;
|
nkeynes@284 | 584 | }
|
nkeynes@284 | 585 |
|
nkeynes@270 | 586 | if( PVR2_TEX_IS_COMPRESSED(mode) ) {
|
nkeynes@736 | 587 | uint16_t tmp[VQ_CODEBOOK_SIZE];
|
nkeynes@736 | 588 | pvr2_vram64_read( (unsigned char *)tmp, texture_addr, VQ_CODEBOOK_SIZE );
|
nkeynes@736 | 589 | texture_addr += VQ_CODEBOOK_SIZE;
|
nkeynes@736 | 590 | vq_get_codebook( &codebook, tmp );
|
nkeynes@270 | 591 | }
|
nkeynes@270 | 592 |
|
nkeynes@349 | 593 | int level=0, last_level = 0, mip_width = width, mip_height = height, src_bytes, dest_bytes;
|
nkeynes@270 | 594 | if( PVR2_TEX_IS_MIPMAPPED(mode) ) {
|
nkeynes@736 | 595 | uint32_t src_offset = 0;
|
nkeynes@1140 | 596 | min_filter = mipmapfilter;
|
nkeynes@736 | 597 | mip_height = height = width;
|
nkeynes@736 | 598 | while( (1<<last_level) < width ) {
|
nkeynes@736 | 599 | last_level++;
|
nkeynes@736 | 600 | src_offset += ((width>>last_level)*(width>>last_level));
|
nkeynes@736 | 601 | }
|
nkeynes@736 | 602 | if( width != 1 ) {
|
nkeynes@736 | 603 | src_offset += 3;
|
nkeynes@736 | 604 | }
|
nkeynes@736 | 605 | if( PVR2_TEX_IS_COMPRESSED(mode) ) {
|
nkeynes@736 | 606 | src_offset >>= 2;
|
nkeynes@736 | 607 | } else if( tex_format == PVR2_TEX_FORMAT_IDX4 ) {
|
nkeynes@736 | 608 | src_offset >>= 1;
|
nkeynes@736 | 609 | } else if( tex_format == PVR2_TEX_FORMAT_YUV422 ) {
|
nkeynes@736 | 610 | src_offset <<= 1;
|
nkeynes@736 | 611 | } else if( tex_format != PVR2_TEX_FORMAT_IDX8 ) {
|
nkeynes@736 | 612 | src_offset <<= bpp_shift;
|
nkeynes@736 | 613 | }
|
nkeynes@736 | 614 | texture_addr += src_offset;
|
nkeynes@270 | 615 | }
|
nkeynes@736 | 616 |
|
nkeynes@654 | 617 |
|
nkeynes@349 | 618 | dest_bytes = (mip_width * mip_height) << bpp_shift;
|
nkeynes@349 | 619 | src_bytes = dest_bytes; // Modes will change this (below)
|
nkeynes@108 | 620 |
|
nkeynes@654 | 621 | for( level=0; level<= last_level; level++ ) {
|
nkeynes@736 | 622 | unsigned char data[dest_bytes];
|
nkeynes@736 | 623 | /* load data from image, detwiddling/uncompressing as required */
|
nkeynes@736 | 624 | if( tex_format == PVR2_TEX_FORMAT_IDX8 ) {
|
nkeynes@1140 | 625 | if( texcache_have_palette_shader ) {
|
nkeynes@1140 | 626 | pvr2_vram64_read_twiddled_8( data, texture_addr, mip_width, mip_height );
|
nkeynes@736 | 627 | } else {
|
nkeynes@1140 | 628 | src_bytes = (mip_width * mip_height);
|
nkeynes@1140 | 629 | int bank = (mode >> 25) &0x03;
|
nkeynes@1140 | 630 | uint32_t *palette = ((uint32_t *)mmio_region_PVR2PAL.mem) + (bank<<8);
|
nkeynes@1140 | 631 | unsigned char tmp[src_bytes];
|
nkeynes@1140 | 632 | pvr2_vram64_read_twiddled_8( tmp, texture_addr, mip_width, mip_height );
|
nkeynes@1140 | 633 | if( bpp_shift == 2 ) {
|
nkeynes@1140 | 634 | decode_pal8_to_32( (uint32_t *)data, tmp, src_bytes, palette );
|
nkeynes@1140 | 635 | } else {
|
nkeynes@1140 | 636 | decode_pal8_to_16( (uint16_t *)data, tmp, src_bytes, palette );
|
nkeynes@1140 | 637 | }
|
nkeynes@736 | 638 | }
|
nkeynes@736 | 639 | } else if( tex_format == PVR2_TEX_FORMAT_IDX4 ) {
|
nkeynes@736 | 640 | src_bytes = (mip_width * mip_height) >> 1;
|
nkeynes@736 | 641 | unsigned char tmp[src_bytes];
|
nkeynes@1140 | 642 | if( texcache_have_palette_shader ) {
|
nkeynes@1140 | 643 | pvr2_vram64_read_twiddled_4( tmp, texture_addr, mip_width, mip_height );
|
nkeynes@1140 | 644 | decode_pal4_to_pal8( data, tmp, src_bytes );
|
nkeynes@736 | 645 | } else {
|
nkeynes@1140 | 646 | int bank = (mode >>21 ) & 0x3F;
|
nkeynes@1140 | 647 | uint32_t *palette = ((uint32_t *)mmio_region_PVR2PAL.mem) + (bank<<4);
|
nkeynes@1140 | 648 | pvr2_vram64_read_twiddled_4( tmp, texture_addr, mip_width, mip_height );
|
nkeynes@1140 | 649 | if( bpp_shift == 2 ) {
|
nkeynes@1140 | 650 | decode_pal4_to_32( (uint32_t *)data, tmp, src_bytes, palette );
|
nkeynes@1140 | 651 | } else {
|
nkeynes@1140 | 652 | decode_pal4_to_16( (uint16_t *)data, tmp, src_bytes, palette );
|
nkeynes@1140 | 653 | }
|
nkeynes@736 | 654 | }
|
nkeynes@736 | 655 | } else if( tex_format == PVR2_TEX_FORMAT_YUV422 ) {
|
nkeynes@736 | 656 | src_bytes = ((mip_width*mip_height)<<1);
|
nkeynes@736 | 657 | unsigned char tmp[src_bytes];
|
nkeynes@736 | 658 | if( PVR2_TEX_IS_TWIDDLED(mode) ) {
|
nkeynes@736 | 659 | pvr2_vram64_read_twiddled_16( tmp, texture_addr, mip_width, mip_height );
|
nkeynes@736 | 660 | } else {
|
nkeynes@736 | 661 | pvr2_vram64_read( tmp, texture_addr, src_bytes );
|
nkeynes@736 | 662 | }
|
nkeynes@736 | 663 | yuv_decode( (uint32_t *)data, (uint32_t *)tmp, mip_width, mip_height );
|
nkeynes@736 | 664 | } else if( PVR2_TEX_IS_COMPRESSED(mode) ) {
|
nkeynes@736 | 665 | src_bytes = ((mip_width*mip_height) >> 2);
|
nkeynes@736 | 666 | unsigned char tmp[src_bytes];
|
nkeynes@736 | 667 | if( PVR2_TEX_IS_TWIDDLED(mode) ) {
|
nkeynes@736 | 668 | pvr2_vram64_read_twiddled_8( tmp, texture_addr, mip_width>>1, mip_height>>1 );
|
nkeynes@736 | 669 | } else {
|
nkeynes@736 | 670 | pvr2_vram64_read( tmp, texture_addr, src_bytes );
|
nkeynes@736 | 671 | }
|
nkeynes@736 | 672 | vq_decode( (uint16_t *)data, tmp, mip_width, mip_height, &codebook );
|
nkeynes@736 | 673 | } else if( PVR2_TEX_IS_TWIDDLED(mode) ) {
|
nkeynes@736 | 674 | pvr2_vram64_read_twiddled_16( data, texture_addr, mip_width, mip_height );
|
nkeynes@736 | 675 | } else {
|
nkeynes@736 | 676 | pvr2_vram64_read( data, texture_addr, src_bytes );
|
nkeynes@736 | 677 | }
|
nkeynes@270 | 678 |
|
nkeynes@736 | 679 | /* Pass to GL */
|
nkeynes@736 | 680 | if( level == last_level && level != 0 ) { /* 1x1 stored within a 2x2 */
|
nkeynes@736 | 681 | glTexImage2D( GL_TEXTURE_2D, level, intFormat, 1, 1, 0, format, type,
|
nkeynes@736 | 682 | data + (3 << bpp_shift) );
|
nkeynes@736 | 683 | } else {
|
nkeynes@736 | 684 | glTexImage2D( GL_TEXTURE_2D, level, intFormat, mip_width, mip_height, 0, format, type,
|
nkeynes@736 | 685 | data );
|
nkeynes@736 | 686 | if( mip_width > 2 ) {
|
nkeynes@736 | 687 | mip_width >>= 1;
|
nkeynes@736 | 688 | mip_height >>= 1;
|
nkeynes@736 | 689 | dest_bytes >>= 2;
|
nkeynes@736 | 690 | src_bytes >>= 2;
|
nkeynes@736 | 691 | }
|
nkeynes@736 | 692 | texture_addr -= src_bytes;
|
nkeynes@736 | 693 | }
|
nkeynes@103 | 694 | }
|
nkeynes@270 | 695 |
|
nkeynes@1140 | 696 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, min_filter);
|
nkeynes@1140 | 697 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, max_filter);
|
nkeynes@103 | 698 | }
|
nkeynes@103 | 699 |
|
nkeynes@1135 | 700 | static int texcache_find_texture_slot( uint32_t poly2_masked_word, uint32_t texture_word )
|
nkeynes@103 | 701 | {
|
nkeynes@653 | 702 | uint32_t texture_addr = (texture_word & 0x000FFFFF)<<3;
|
nkeynes@103 | 703 | uint32_t texture_page = texture_addr >> 12;
|
nkeynes@462 | 704 | texcache_entry_index next;
|
nkeynes@103 | 705 | texcache_entry_index idx = texcache_page_lookup[texture_page];
|
nkeynes@103 | 706 | while( idx != EMPTY_ENTRY ) {
|
nkeynes@736 | 707 | texcache_entry_t entry = &texcache_active_list[idx];
|
nkeynes@1135 | 708 | if( entry->tex_mode == texture_word &&
|
nkeynes@1135 | 709 | entry->poly2_mode == poly2_masked_word ) {
|
nkeynes@736 | 710 | entry->lru_count = texcache_ref_counter++;
|
nkeynes@856 | 711 | return idx;
|
nkeynes@736 | 712 | }
|
nkeynes@103 | 713 | idx = entry->next;
|
nkeynes@103 | 714 | }
|
nkeynes@856 | 715 | return -1;
|
nkeynes@856 | 716 | }
|
nkeynes@103 | 717 |
|
nkeynes@1135 | 718 | static int texcache_alloc_texture_slot( uint32_t poly2_word, uint32_t texture_word )
|
nkeynes@856 | 719 | {
|
nkeynes@856 | 720 | uint32_t texture_addr = (texture_word & 0x000FFFFF)<<3;
|
nkeynes@856 | 721 | uint32_t texture_page = texture_addr >> 12;
|
nkeynes@462 | 722 | texcache_entry_index slot = 0;
|
nkeynes@103 | 723 |
|
nkeynes@103 | 724 | if( texcache_free_ptr < MAX_TEXTURES ) {
|
nkeynes@736 | 725 | slot = texcache_free_list[texcache_free_ptr++];
|
nkeynes@103 | 726 | } else {
|
nkeynes@736 | 727 | slot = texcache_evict_lru();
|
nkeynes@103 | 728 | }
|
nkeynes@103 | 729 |
|
nkeynes@103 | 730 | /* Construct new entry */
|
nkeynes@886 | 731 | assert( texcache_active_list[slot].texture_addr == -1 );
|
nkeynes@103 | 732 | texcache_active_list[slot].texture_addr = texture_addr;
|
nkeynes@1135 | 733 | texcache_active_list[slot].tex_mode = texture_word;
|
nkeynes@1135 | 734 | texcache_active_list[slot].poly2_mode = poly2_word;
|
nkeynes@103 | 735 | texcache_active_list[slot].lru_count = texcache_ref_counter++;
|
nkeynes@103 | 736 |
|
nkeynes@103 | 737 | /* Add entry to the lookup table */
|
nkeynes@856 | 738 | int next = texcache_page_lookup[texture_page];
|
nkeynes@462 | 739 | if( next == slot ) {
|
nkeynes@736 | 740 | int i;
|
nkeynes@736 | 741 | fprintf( stderr, "Active list: " );
|
nkeynes@736 | 742 | for( i=0; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 743 | fprintf( stderr, "%d, ", texcache_active_list[i].next );
|
nkeynes@736 | 744 | }
|
nkeynes@736 | 745 | fprintf( stderr, "\n" );
|
nkeynes@736 | 746 | assert( next != slot );
|
nkeynes@736 | 747 |
|
nkeynes@462 | 748 | }
|
nkeynes@462 | 749 | texcache_active_list[slot].next = next;
|
nkeynes@103 | 750 | texcache_page_lookup[texture_page] = slot;
|
nkeynes@856 | 751 | return slot;
|
nkeynes@856 | 752 | }
|
nkeynes@103 | 753 |
|
nkeynes@103 | 754 | /**
|
nkeynes@103 | 755 | * Return a texture ID for the texture specified at the supplied address
|
nkeynes@103 | 756 | * and given parameters (the same sequence of bytes could in theory have
|
nkeynes@103 | 757 | * multiple interpretations). We use the texture address as the primary
|
nkeynes@1135 | 758 | * index, but allow for multiple instances at each address.
|
nkeynes@103 | 759 | *
|
nkeynes@103 | 760 | * If the texture has already been bound, return the ID to which it was
|
nkeynes@103 | 761 | * bound. Otherwise obtain an unused texture ID and set it up appropriately.
|
nkeynes@1135 | 762 | * The current GL_TEXTURE_2D binding will be changed in this case.
|
nkeynes@103 | 763 | */
|
nkeynes@1135 | 764 | GLuint texcache_get_texture( uint32_t poly2_word, uint32_t texture_word )
|
nkeynes@103 | 765 | {
|
nkeynes@1135 | 766 | poly2_word &= 0x000F803F; /* Get just the texture-relevant bits */
|
nkeynes@1140 | 767 | uint32_t texture_lookup = texture_word;
|
nkeynes@1140 | 768 | if( PVR2_TEX_IS_PALETTE(texture_lookup) ) {
|
nkeynes@1140 | 769 | texture_lookup &= 0xF81FFFFF; /* Mask out the bank bits */
|
nkeynes@1140 | 770 | }
|
nkeynes@1140 | 771 | int slot = texcache_find_texture_slot( poly2_word, texture_lookup );
|
nkeynes@856 | 772 |
|
nkeynes@856 | 773 | if( slot == -1 ) {
|
nkeynes@856 | 774 | /* Not found - check the free list */
|
nkeynes@1140 | 775 | slot = texcache_alloc_texture_slot( poly2_word, texture_lookup );
|
nkeynes@856 | 776 |
|
nkeynes@856 | 777 | /* Construct the GL texture */
|
nkeynes@856 | 778 | uint32_t texture_addr = (texture_word & 0x000FFFFF)<<3;
|
nkeynes@1135 | 779 | unsigned width = POLY2_TEX_WIDTH(poly2_word);
|
nkeynes@1135 | 780 | unsigned height = POLY2_TEX_HEIGHT(poly2_word);
|
nkeynes@1135 | 781 |
|
nkeynes@856 | 782 | glBindTexture( GL_TEXTURE_2D, texcache_active_list[slot].texture_id );
|
nkeynes@856 | 783 | texcache_load_texture( texture_addr, width, height, texture_word );
|
nkeynes@1135 | 784 |
|
nkeynes@1135 | 785 | /* Set texture parameters from the poly2 word */
|
nkeynes@1135 | 786 | if( POLY2_TEX_CLAMP_U(poly2_word) ) {
|
nkeynes@1210 | 787 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
|
nkeynes@1135 | 788 | } else if( POLY2_TEX_MIRROR_U(poly2_word) ) {
|
nkeynes@1210 | 789 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT );
|
nkeynes@1135 | 790 | } else {
|
nkeynes@1135 | 791 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
|
nkeynes@1135 | 792 | }
|
nkeynes@1135 | 793 | if( POLY2_TEX_CLAMP_V(poly2_word) ) {
|
nkeynes@1210 | 794 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
|
nkeynes@1135 | 795 | } else if( POLY2_TEX_MIRROR_V(poly2_word) ) {
|
nkeynes@1210 | 796 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT );
|
nkeynes@1135 | 797 | } else {
|
nkeynes@1135 | 798 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
|
nkeynes@1135 | 799 | }
|
nkeynes@103 | 800 | }
|
nkeynes@103 | 801 |
|
nkeynes@103 | 802 | return texcache_active_list[slot].texture_id;
|
nkeynes@103 | 803 | }
|
nkeynes@653 | 804 |
|
nkeynes@1135 | 805 | #if 0
|
nkeynes@856 | 806 | render_buffer_t texcache_get_render_buffer( uint32_t texture_addr, int mode, int width, int height )
|
nkeynes@856 | 807 | {
|
nkeynes@856 | 808 | uint32_t texture_word = ((texture_addr >> 3) & 0x000FFFFF) | PVR2_TEX_UNTWIDDLED;
|
nkeynes@856 | 809 | switch( mode ) {
|
nkeynes@856 | 810 | case COLFMT_BGRA1555: texture_word |= PVR2_TEX_FORMAT_ARGB1555; break;
|
nkeynes@856 | 811 | case COLFMT_RGB565: texture_word |= PVR2_TEX_FORMAT_RGB565; break;
|
nkeynes@856 | 812 | case COLFMT_BGRA4444: texture_word |= PVR2_TEX_FORMAT_ARGB4444; break;
|
nkeynes@856 | 813 | default:
|
nkeynes@856 | 814 | WARN( "Rendering to non-texture colour format" );
|
nkeynes@856 | 815 | }
|
nkeynes@856 | 816 | if( is_npot_texture(width) )
|
nkeynes@856 | 817 | texture_word |= PVR2_TEX_STRIDE;
|
nkeynes@635 | 818 |
|
nkeynes@856 | 819 |
|
nkeynes@856 | 820 | int slot = texcache_find_texture_slot( texture_word, width, height );
|
nkeynes@856 | 821 | if( slot == -1 ) {
|
nkeynes@856 | 822 | slot = texcache_alloc_texture_slot( texture_word, width, height );
|
nkeynes@856 | 823 | }
|
nkeynes@856 | 824 |
|
nkeynes@856 | 825 | texcache_entry_t entry = &texcache_active_list[slot];
|
nkeynes@103 | 826 |
|
nkeynes@870 | 827 | if( entry->buffer == NULL ) {
|
nkeynes@856 | 828 | entry->buffer = pvr2_create_render_buffer( texture_addr, width, height, entry->texture_id );
|
nkeynes@870 | 829 | } else if( entry->buffer->width != width || entry->buffer->height != height ) {
|
nkeynes@870 | 830 | texcache_release_render_buffer(entry->buffer);
|
nkeynes@870 | 831 | entry->buffer = pvr2_create_render_buffer( texture_addr, width, height, entry->texture_id );
|
nkeynes@103 | 832 | }
|
nkeynes@103 | 833 |
|
nkeynes@856 | 834 | return entry->buffer;
|
nkeynes@103 | 835 | }
|
nkeynes@1135 | 836 | #endif
|
nkeynes@635 | 837 |
|
nkeynes@635 | 838 | /**
|
nkeynes@635 | 839 | * Check the integrity of the texcache. Verifies that every cache slot
|
nkeynes@635 | 840 | * appears exactly once on either the free list or one page list. For
|
nkeynes@635 | 841 | * active slots, the texture address must also match the page it appears on.
|
nkeynes@635 | 842 | *
|
nkeynes@635 | 843 | */
|
nkeynes@635 | 844 | void texcache_integrity_check()
|
nkeynes@635 | 845 | {
|
nkeynes@635 | 846 | int i;
|
nkeynes@635 | 847 | int slot_found[MAX_TEXTURES];
|
nkeynes@736 | 848 |
|
nkeynes@635 | 849 | memset( slot_found, 0, sizeof(slot_found) );
|
nkeynes@635 | 850 |
|
nkeynes@635 | 851 | /* Check entries on the free list */
|
nkeynes@635 | 852 | for( i= texcache_free_ptr; i< MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 853 | int slot = texcache_free_list[i];
|
nkeynes@736 | 854 | assert( slot_found[slot] == 0 );
|
nkeynes@736 | 855 | assert( texcache_active_list[slot].next == EMPTY_ENTRY );
|
nkeynes@736 | 856 | slot_found[slot] = 1;
|
nkeynes@635 | 857 | }
|
nkeynes@635 | 858 |
|
nkeynes@635 | 859 | /* Check entries on the active lists */
|
nkeynes@635 | 860 | for( i=0; i< PVR2_RAM_PAGES; i++ ) {
|
nkeynes@736 | 861 | int slot = texcache_page_lookup[i];
|
nkeynes@736 | 862 | while( slot != EMPTY_ENTRY ) {
|
nkeynes@736 | 863 | assert( slot_found[slot] == 0 );
|
nkeynes@736 | 864 | assert( (texcache_active_list[slot].texture_addr >> 12) == i );
|
nkeynes@736 | 865 | slot_found[slot] = 2;
|
nkeynes@736 | 866 | slot = texcache_active_list[slot].next;
|
nkeynes@736 | 867 | }
|
nkeynes@635 | 868 | }
|
nkeynes@635 | 869 |
|
nkeynes@635 | 870 | /* Make sure we didn't miss any entries */
|
nkeynes@635 | 871 | for( i=0; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 872 | assert( slot_found[i] != 0 );
|
nkeynes@635 | 873 | }
|
nkeynes@635 | 874 | }
|
nkeynes@1140 | 875 |
|
nkeynes@1140 | 876 | /**
|
nkeynes@1140 | 877 | * Dump the contents of the texture cache
|
nkeynes@1140 | 878 | */
|
nkeynes@1140 | 879 | void texcache_dump()
|
nkeynes@1140 | 880 | {
|
nkeynes@1140 | 881 | unsigned i;
|
nkeynes@1165 | 882 | GLboolean boolresult;
|
nkeynes@1140 | 883 | for( i=0; i< PVR2_RAM_PAGES; i++ ) {
|
nkeynes@1140 | 884 | int slot = texcache_page_lookup[i];
|
nkeynes@1140 | 885 | while( slot != EMPTY_ENTRY ) {
|
nkeynes@1165 | 886 | fprintf( stderr, "%-3d: %08X %dx%d (%08X %08X) %s\n", slot,
|
nkeynes@1140 | 887 | texcache_active_list[slot].texture_addr,
|
nkeynes@1140 | 888 | POLY2_TEX_WIDTH(texcache_active_list[slot].poly2_mode),
|
nkeynes@1140 | 889 | POLY2_TEX_HEIGHT(texcache_active_list[slot].poly2_mode),
|
nkeynes@1140 | 890 | texcache_active_list[slot].poly2_mode,
|
nkeynes@1165 | 891 | texcache_active_list[slot].tex_mode,
|
nkeynes@1221 | 892 | #ifdef HAVE_OPENGL_TEX_RESIDENT
|
nkeynes@1221 | 893 | (glAreTexturesResident(1, &texcache_active_list[slot].texture_id, &boolresult) ? "[RESIDENT]" : "[NOT RESIDENT]")
|
nkeynes@1221 | 894 | #else
|
nkeynes@1221 | 895 | ""
|
nkeynes@1221 | 896 | #endif
|
nkeynes@1221 | 897 | );
|
nkeynes@1140 | 898 | slot = texcache_active_list[slot].next;
|
nkeynes@1140 | 899 | }
|
nkeynes@1140 | 900 | }
|
nkeynes@1140 | 901 | }
|
nkeynes@1142 | 902 |
|
nkeynes@1142 | 903 | void texcache_print_idx4( uint32_t texture_addr, int width )
|
nkeynes@1142 | 904 | {
|
nkeynes@1142 | 905 | unsigned x,y;
|
nkeynes@1142 | 906 | int src_bytes = (width*width>>1);
|
nkeynes@1142 | 907 | char tmp[src_bytes];
|
nkeynes@1142 | 908 | char data[width*width];
|
nkeynes@1142 | 909 | pvr2_vram64_read_twiddled_4( tmp, texture_addr, width, width );
|
nkeynes@1142 | 910 | decode_pal4_to_pal8( data, tmp, src_bytes );
|
nkeynes@1142 | 911 | for( y=0; y<width; y++ ) {
|
nkeynes@1142 | 912 | for( x=0; x<width; x++ ) {
|
nkeynes@1142 | 913 | printf( "%1x", data[y*width+x] );
|
nkeynes@1142 | 914 | }
|
nkeynes@1142 | 915 | printf( "\n" );
|
nkeynes@1142 | 916 | }
|
nkeynes@1142 | 917 | }
|