summaryrefslogtreecommitdiff
path: root/src/mesa/es/main/es_cpaltex.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/es/main/es_cpaltex.c')
-rw-r--r--src/mesa/es/main/es_cpaltex.c231
1 files changed, 0 insertions, 231 deletions
diff --git a/src/mesa/es/main/es_cpaltex.c b/src/mesa/es/main/es_cpaltex.c
deleted file mode 100644
index 0c497774ff..0000000000
--- a/src/mesa/es/main/es_cpaltex.c
+++ /dev/null
@@ -1,231 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- **************************************************************************/
-
-
-/**
- * Code to convert compressed/paletted texture images to ordinary images.
- * See the GL_OES_compressed_paletted_texture spec at
- * http://khronos.org/registry/gles/extensions/OES/OES_compressed_paletted_texture.txt
- *
- * XXX this makes it impossible to add hardware support...
- */
-
-
-#include "GLES/gl.h"
-#include "GLES/glext.h"
-
-#include "main/compiler.h" /* for ASSERT */
-
-
-void GL_APIENTRY _es_CompressedTexImage2DARB(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *data);
-
-void GL_APIENTRY _mesa_GetIntegerv(GLenum pname, GLint *params);
-void GL_APIENTRY _mesa_PixelStorei(GLenum pname, GLint param);
-void GL_APIENTRY _mesa_TexImage2D(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
-void GL_APIENTRY _mesa_CompressedTexImage2DARB(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *data);
-
-void *_mesa_get_current_context(void);
-void _mesa_error(void *ctx, GLenum error, const char *fmtString, ... );
-
-
-static const struct cpal_format_info {
- GLenum cpal_format;
- GLenum format;
- GLenum type;
- GLuint palette_size;
- GLuint size;
-} formats[] = {
- { GL_PALETTE4_RGB8_OES, GL_RGB, GL_UNSIGNED_BYTE, 16, 3 },
- { GL_PALETTE4_RGBA8_OES, GL_RGBA, GL_UNSIGNED_BYTE, 16, 4 },
- { GL_PALETTE4_R5_G6_B5_OES, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 16, 2 },
- { GL_PALETTE4_RGBA4_OES, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, 16, 2 },
- { GL_PALETTE4_RGB5_A1_OES, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, 16, 2 },
- { GL_PALETTE8_RGB8_OES, GL_RGB, GL_UNSIGNED_BYTE, 256, 3 },
- { GL_PALETTE8_RGBA8_OES, GL_RGBA, GL_UNSIGNED_BYTE, 256, 4 },
- { GL_PALETTE8_R5_G6_B5_OES, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 256, 2 },
- { GL_PALETTE8_RGBA4_OES, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, 256, 2 },
- { GL_PALETTE8_RGB5_A1_OES, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, 256, 2 }
-};
-
-
-/**
- * Get a color/entry from the palette.
- */
-static GLuint
-get_palette_entry(const struct cpal_format_info *info, const GLubyte *palette,
- GLuint index, GLubyte *pixel)
-{
- memcpy(pixel, palette + info->size * index, info->size);
- return info->size;
-}
-
-
-/**
- * Convert paletted texture to color texture.
- */
-static void
-paletted_to_color(const struct cpal_format_info *info, const GLubyte *palette,
- const void *indices, GLuint num_pixels, GLubyte *image)
-{
- GLubyte *pix = image;
- GLuint remain, i;
-
- if (info->palette_size == 16) {
- /* 4 bits per index */
- const GLubyte *ind = (const GLubyte *) indices;
-
- /* two pixels per iteration */
- remain = num_pixels % 2;
- for (i = 0; i < num_pixels / 2; i++) {
- pix += get_palette_entry(info, palette, (ind[i] >> 4) & 0xf, pix);
- pix += get_palette_entry(info, palette, ind[i] & 0xf, pix);
- }
- if (remain) {
- get_palette_entry(info, palette, (ind[i] >> 4) & 0xf, pix);
- }
- }
- else {
- /* 8 bits per index */
- const GLubyte *ind = (const GLubyte *) indices;
- for (i = 0; i < num_pixels; i++)
- pix += get_palette_entry(info, palette, ind[i], pix);
- }
-}
-
-
-static const struct cpal_format_info *
-cpal_get_info(GLint level, GLenum internalFormat,
- GLsizei width, GLsizei height, GLsizei imageSize)
-{
- const struct cpal_format_info *info;
- GLint lvl, num_levels;
- GLsizei w, h, expect_size;
-
- info = &formats[internalFormat - GL_PALETTE4_RGB8_OES];
- ASSERT(info->cpal_format == internalFormat);
-
- if (level > 0) {
- _mesa_error(_mesa_get_current_context(), GL_INVALID_VALUE,
- "glCompressedTexImage2D(level=%d)", level);
- return NULL;
- }
-
- num_levels = -level + 1;
- expect_size = info->palette_size * info->size;
- for (lvl = 0; lvl < num_levels; lvl++) {
- w = width >> lvl;
- if (!w)
- w = 1;
- h = height >> lvl;
- if (!h)
- h = 1;
-
- if (info->palette_size == 16)
- expect_size += (w * h + 1) / 2;
- else
- expect_size += w * h;
- }
- if (expect_size > imageSize) {
- _mesa_error(_mesa_get_current_context(), GL_INVALID_VALUE,
- "glCompressedTexImage2D(imageSize=%d)", imageSize);
- return NULL;
- }
- return info;
-}
-
-/**
- * Convert a call to glCompressedTexImage2D() where internalFormat is a
- * compressed palette format into a regular GLubyte/RGBA glTexImage2D() call.
- */
-static void
-cpal_compressed_teximage2d(GLenum target, GLint level, GLenum internalFormat,
- GLsizei width, GLsizei height, GLsizei imageSize,
- const void *palette)
-{
- const struct cpal_format_info *info;
- GLint lvl, num_levels;
- const GLubyte *indices;
- GLint saved_align, align;
-
- info = cpal_get_info(level, internalFormat, width, height, imageSize);
- if (!info)
- return;
-
- info = &formats[internalFormat - GL_PALETTE4_RGB8_OES];
- ASSERT(info->cpal_format == internalFormat);
- num_levels = -level + 1;
-
- /* first image follows the palette */
- indices = (const GLubyte *) palette + info->palette_size * info->size;
-
- _mesa_GetIntegerv(GL_UNPACK_ALIGNMENT, &saved_align);
- align = saved_align;
-
- for (lvl = 0; lvl < num_levels; lvl++) {
- GLsizei w, h;
- GLuint num_texels;
- GLubyte *image = NULL;
-
- w = width >> lvl;
- if (!w)
- w = 1;
- h = height >> lvl;
- if (!h)
- h = 1;
- num_texels = w * h;
- if (w * info->size % align) {
- _mesa_PixelStorei(GL_UNPACK_ALIGNMENT, 1);
- align = 1;
- }
-
- /* allocate and fill dest image buffer */
- if (palette) {
- image = (GLubyte *) malloc(num_texels * info->size);
- paletted_to_color(info, palette, indices, num_texels, image);
- }
-
- _mesa_TexImage2D(target, lvl, info->format, w, h, 0,
- info->format, info->type, image);
- if (image)
- free(image);
-
- /* advance index pointer to point to next src mipmap */
- if (info->palette_size == 16)
- indices += (num_texels + 1) / 2;
- else
- indices += num_texels;
- }
-
- if (saved_align != align)
- _mesa_PixelStorei(GL_UNPACK_ALIGNMENT, saved_align);
-}
-
-
-void GL_APIENTRY
-_es_CompressedTexImage2DARB(GLenum target, GLint level, GLenum internalFormat,
- GLsizei width, GLsizei height, GLint border,
- GLsizei imageSize, const GLvoid *data)
-{
- switch (internalFormat) {
- case GL_PALETTE4_RGB8_OES:
- case GL_PALETTE4_RGBA8_OES:
- case GL_PALETTE4_R5_G6_B5_OES:
- case GL_PALETTE4_RGBA4_OES:
- case GL_PALETTE4_RGB5_A1_OES:
- case GL_PALETTE8_RGB8_OES:
- case GL_PALETTE8_RGBA8_OES:
- case GL_PALETTE8_R5_G6_B5_OES:
- case GL_PALETTE8_RGBA4_OES:
- case GL_PALETTE8_RGB5_A1_OES:
- cpal_compressed_teximage2d(target, level, internalFormat,
- width, height, imageSize, data);
- break;
- default:
- _mesa_CompressedTexImage2DARB(target, level, internalFormat,
- width, height, border, imageSize, data);
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-13 18:16:51 +0000