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Test paletted stuff
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This commit is contained in:
Dominic Masters
2026-03-26 14:48:20 -05:00
parent 98947dea26
commit 407620387d
10 changed files with 138 additions and 33 deletions
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42
src/duskgl/display/texture/texturegl.c
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@@ -8,6 +8,7 @@
#include "display/texture/texture.h"
#include "assert/assert.h"
#include "error/errorgl.h"
#include "util/memory.h"
errorret_t textureInitGL(
texturegl_t *texture,
@@ -29,20 +30,32 @@ errorret_t textureInitGL(
break;
case TEXTURE_FORMAT_PALETTE:
assertNotNull(data.paletteData, "Palette texture data cannot be NULL");
glTexImage2D(
GL_TEXTURE_2D,
0, GL_COLOR_INDEX8_EXT,
width, height,
0, GL_COLOR_INDEX8_EXT,
GL_UNSIGNED_BYTE, (void*)data.paletteData
);
errorChain(errorGLCheck());
// glColorTableEXT(
// GL_TEXTURE_2D, GL_RGBA, data.palette.palette->colorCount, GL_RGBA,
// GL_UNSIGNED_BYTE, (const void*)data.palette.palette->colors
// );
assertNotNull(data.paletted.indices, "Palette indices cannot be NULL");
assertNotNull(data.paletted.palette, "Palette colors cannot be NULL");
#ifdef DUSK_OPENGL_LEGACY
glTexImage2D(
GL_TEXTURE_2D,
0, GL_COLOR_INDEX8_EXT,
width, height,
0, GL_COLOR_INDEX8_EXT,
GL_UNSIGNED_BYTE, (void*)data.paletted.indices
);
errorChain(errorGLCheck());
glColorTableEXT(
GL_TEXTURE_2D, GL_RGBA, data.paletted.palette->count, GL_RGBA,
GL_UNSIGNED_BYTE, (const void*)data.paletted.palette->colors
);
errorChain(errorGLCheck());
#else
// For modern systems we send to only the R channel and the shader does
// the rest.
glTexImage2D(
GL_TEXTURE_2D, 0, GL_RED, width, height, 0,
GL_RED, GL_UNSIGNED_BYTE, (void*)data.paletted.indices
);
errorChain(errorGLCheck());
texture->palette = data.paletted.palette;
#endif
break;
default:
@@ -69,5 +82,6 @@ errorret_t textureDisposeGL(texturegl_t *texture) {
glDeleteTextures(1, &texture->id);
errorChain(errorGLCheck());
errorOk();
}