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Fixed GLES support (partially), PSP still not working

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This commit is contained in:
Dominic Masters
2026-03-28 10:51:50 -05:00
parent 9ba0ceb000
commit d5b0441e6f
7 changed files with 122 additions and 43 deletions
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2
src/duskgl/display/displaygl.c
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@@ -29,8 +29,6 @@ errorret_t displayOpenGLInit(void) {
errorChain(errorGLCheck());
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
errorChain(errorGLCheck());
glPixelStorei(GL_PACK_ALIGNMENT, 1);
errorChain(errorGLCheck());
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
errorChain(errorGLCheck());

4
src/duskgl/display/shader/shadergl.c
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@@ -221,7 +221,7 @@ errorret_t shaderSetTextureGL(
name,
SHADER_UNLIT_TEXTURE,
"Only one texture supported in legacy opengl."
)
);
if(texture == NULL) {
glDisable(GL_TEXTURE_2D);
@@ -233,8 +233,6 @@ errorret_t shaderSetTextureGL(
errorChain(errorGLCheck());
glBindTexture(GL_TEXTURE_2D, texture->id);
errorChain(errorGLCheck());
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
errorChain(errorGLCheck());
#else
if(shader->setTexture == NULL) {

53
src/duskgl/display/shader/shaderunlitgl.c
View File

@@ -47,6 +47,9 @@
// Set texture type
if(texture->format == TEXTURE_FORMAT_PALETTE) {
glUniform1i(locType, 2);
errorChain(errorGLCheck());
shaderParamGetLocationGL(shader, "u_ColorCount", &locColorCount);
glUniform1i(locColorCount, texture->palette->count);
errorChain(errorGLCheck());
@@ -75,7 +78,24 @@
shaderdefinition_t SHADER_UNLIT_DEFINITION = {
.vert =
#ifdef DUSK_OPENGL_ES
"#version 300 es\n"
"precision mediump float;\n"
// Attributes
"layout(location = 0) in vec3 a_Pos;\n"
"layout(location = 1) in vec2 a_TexCoord;\n"
"layout(location = 2) in vec4 a_Color;\n"
// Uniforms
"uniform mat4 u_Proj;\n"
"uniform mat4 u_View;\n"
"uniform mat4 u_Model;\n"
// Vertex shader outputs
"out vec4 v_Color;\n"
"out vec2 v_TexCoord;\n"
"void main() {\n"
" gl_Position = u_Proj * u_View * u_Model * vec4(a_Pos, 1.0);\n"
" v_Color = a_Color;\n"
" v_TexCoord = a_TexCoord;\n"
"}\n",
#else
"#version 330 core\n"
// Attributes
@@ -97,7 +117,36 @@
#endif
.frag =
#ifdef DUSK_OPENGL_ES
"#version 300 es\n"
"precision mediump float;\n"
// Uniforms
"uniform sampler2D u_Texture;\n"
"uniform int u_TextureType;\n"
"uniform vec4 u_Colors[256];\n"// For paletted textures.
"uniform int u_ColorCount;\n"
// Fragment shader inputs
"in vec4 v_Color;\n"
"in vec2 v_TexCoord;\n"
// Fragment shader output
"out vec4 FragColor;\n"
"void main() {\n"
" if(u_TextureType == 0) {\n"// No texture
" FragColor = v_Color;\n"
" return;\n"
" }\n"
" if(u_TextureType == 1) {\n"// Regular texture
" FragColor = texture(u_Texture, v_TexCoord) * v_Color;\n"
" return;\n"
" }\n"
" if(u_TextureType == 2) {\n"// Paletted texture
" vec4 texColor = texture(u_Texture, v_TexCoord);\n"
" int index = int(floor(texColor.r * 255.0));\n"
" vec4 paletteColor = u_Colors[index];\n"
" FragColor = paletteColor;\n"
" return;\n"
" }\n"
" FragColor = v_Color;\n"// Unknown texture type?
"}\n",
#else
"#version 330 core\n"
// Uniforms

49
src/duskgl/display/texture/texturegl.c
View File

@@ -17,16 +17,33 @@ errorret_t textureInitGL(
const textureformatgl_t format,
const texturedata_t data
) {
glEnable(GL_TEXTURE_2D);
errorChain(errorGLCheck());
glGenTextures(1, &texture->id);
errorChain(errorGLCheck());
glBindTexture(GL_TEXTURE_2D, texture->id);
errorChain(errorGLCheck());
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
errorChain(errorGLCheck());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
errorChain(errorGLCheck());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
errorChain(errorGLCheck());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
errorChain(errorGLCheck());
#ifdef DUSK_OPENGL_LEGACY
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
#endif
switch(format) {
case TEXTURE_FORMAT_RGBA:
glTexImage2D(
GL_TEXTURE_2D, 0, format, width, height, 0,
format, GL_UNSIGNED_BYTE, (void*)data.rgbaColors
GL_TEXTURE_2D, 0, 4, width, height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, (void*)data.rgbaColors
);
errorChain(errorGLCheck());
break;
@@ -34,7 +51,20 @@ errorret_t textureInitGL(
case TEXTURE_FORMAT_PALETTE:
texture->palette = data.paletted.palette;
assertTrue(
texture->palette == &PALETTES[0],
"Only the first palette is supported in legacy opengl."
);
printf("sizeof(color_t)=%zu\n", sizeof(color_t));
printf("count=%u\n", texture->palette->count);
#ifdef DUSK_OPENGL_LEGACY
glColorTableEXT(
GL_TEXTURE_2D, GL_RGBA, texture->palette->count, GL_RGBA,
GL_UNSIGNED_BYTE, (const void*)texture->palette->colors
);
errorChain(errorGLCheck());
glTexImage2D(
GL_TEXTURE_2D,
0, GL_COLOR_INDEX8_EXT,
@@ -42,13 +72,7 @@ errorret_t textureInitGL(
0, GL_COLOR_INDEX8_EXT,
GL_UNSIGNED_BYTE, (void*)data.paletted.indices
);
glColorTableEXT(
GL_TEXTURE_2D, GL_RGBA, texture->palette->count, GL_RGBA,
GL_UNSIGNED_BYTE, (const void*)texture->palette->colors
);
errorChain(errorGLCheck());
#else
// For modern systems we send to only the R channel and the shader does
// the rest.
@@ -65,15 +89,6 @@ errorret_t textureInitGL(
break;
}
errorChain(errorGLCheck());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
errorChain(errorGLCheck());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
errorChain(errorGLCheck());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
errorChain(errorGLCheck());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
errorChain(errorGLCheck());
glBindTexture(GL_TEXTURE_2D, 0);
errorChain(errorGLCheck());