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Add pdsg (palladium spirv-generator)

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- remove glslang from pd-system
- use spirv blobs instead of glsl 460
- Use Legacy shaders for OpenGL2 backend
- add devnotes
This commit is contained in:
tobid7
2026-03-18 21:21:00 +01:00
parent 7d89ab1c47
commit 71563e8979
14 changed files with 409 additions and 83 deletions
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56
backends/include/pd_system/shaders.hpp
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@@ -1,51 +1,17 @@
#pragma once
namespace PD {
/**
* Shader blobs
* Required for OpenGL3, and maybe later for vulkan
* Shaders can be found in /tools/pdsg/shaders
*/
namespace Shaders {
inline static const char* VertCode = R"(
#version 460
layout(location = 0) in vec2 pos;
layout(location = 1) in vec2 uv;
layout(location = 2) in vec4 color;
layout(location = 0) out vec2 oUV;
layout(location = 1) out vec4 oColor;
// Probably forgot about this matrix and
// searched hours for why the rendering isn't working :/
layout(set = 0, binding = 0) uniform UBO {
mat4 projection;
} ubo;
void main() {
gl_Position = ubo.projection*vec4(pos, 0.0, 1.0);
oUV = uv;
oColor = color;
}
)";
inline static const char* FragCode = R"(
#version 460
layout(location = 0) in vec2 oUV;
layout(location = 1) in vec4 oColor;
uniform sampler2D tex;
layout(push_constant) uniform PushData {
int alfa;
} push;
out vec4 FragColor;
void main() {
vec4 tc = texture(tex, oUV);
if (push.alfa != 0) {
FragColor = vec4(oColor.rgb, tc.a * oColor.a);
} else {
FragColor = tc * oColor;
}
}
)";
// clang-format off
const unsigned int VertexShader[] = { 0x7230203, 0x10000, 0x8000B, 0x2B, 0x0, 0x20011, 0x1, 0x6000B, 0x1, 0x4C534C47, 0x6474732E, 0x3035342E, 0x0, 0x3000E, 0x0, 0x1, 0xB000F, 0x0, 0x4, 0x6E69616D, 0x0, 0xD, 0x19, 0x24, 0x25, 0x27, 0x29, 0x30003, 0x2, 0x1CC, 0x40005, 0x4, 0x6E69616D, 0x0, 0x60005, 0xB, 0x505F6C67, 0x65567265, 0x78657472, 0x0, 0x60006, 0xB, 0x0, 0x505F6C67, 0x7469736F, 0x6E6F69, 0x70006, 0xB, 0x1, 0x505F6C67, 0x746E696F, 0x657A6953, 0x0, 0x70006, 0xB, 0x2, 0x435F6C67, 0x4470696C, 0x61747369, 0x65636E, 0x70006, 0xB, 0x3, 0x435F6C67, 0x446C6C75, 0x61747369, 0x65636E, 0x30005, 0xD, 0x0, 0x30005, 0x11, 0x4F4255, 0x60006, 0x11, 0x0, 0x6A6F7270, 0x69746365, 0x6E6F, 0x30005, 0x13, 0x6F6275, 0x30005, 0x19, 0x736F70, 0x30005, 0x24, 0x56556F, 0x30005, 0x25, 0x7675, 0x40005, 0x27, 0x6C6F436F, 0x726F, 0x40005, 0x29, 0x6F6C6F63, 0x72, 0x30047, 0xB, 0x2, 0x50048, 0xB, 0x0, 0xB, 0x0, 0x50048, 0xB, 0x1, 0xB, 0x1, 0x50048, 0xB, 0x2, 0xB, 0x3, 0x50048, 0xB, 0x3, 0xB, 0x4, 0x30047, 0x11, 0x2, 0x40048, 0x11, 0x0, 0x5, 0x50048, 0x11, 0x0, 0x7, 0x10, 0x50048, 0x11, 0x0, 0x23, 0x0, 0x40047, 0x13, 0x21, 0x0, 0x40047, 0x13, 0x22, 0x0, 0x40047, 0x19, 0x1E, 0x0, 0x40047, 0x24, 0x1E, 0x0, 0x40047, 0x25, 0x1E, 0x1, 0x40047, 0x27, 0x1E, 0x1, 0x40047, 0x29, 0x1E, 0x2, 0x20013, 0x2, 0x30021, 0x3, 0x2, 0x30016, 0x6, 0x20, 0x40017, 0x7, 0x6, 0x4, 0x40015, 0x8, 0x20, 0x0, 0x4002B, 0x8, 0x9, 0x1, 0x4001C, 0xA, 0x6, 0x9, 0x6001E, 0xB, 0x7, 0x6, 0xA, 0xA, 0x40020, 0xC, 0x3, 0xB, 0x4003B, 0xC, 0xD, 0x3, 0x40015, 0xE, 0x20, 0x1, 0x4002B, 0xE, 0xF, 0x0, 0x40018, 0x10, 0x7, 0x4, 0x3001E, 0x11, 0x10, 0x40020, 0x12, 0x2, 0x11, 0x4003B, 0x12, 0x13, 0x2, 0x40020, 0x14, 0x2, 0x10, 0x40017, 0x17, 0x6, 0x2, 0x40020, 0x18, 0x1, 0x17, 0x4003B, 0x18, 0x19, 0x1, 0x4002B, 0x6, 0x1B, 0x0, 0x4002B, 0x6, 0x1C, 0x3F800000, 0x40020, 0x21, 0x3, 0x7, 0x40020, 0x23, 0x3, 0x17, 0x4003B, 0x23, 0x24, 0x3, 0x4003B, 0x18, 0x25, 0x1, 0x4003B, 0x21, 0x27, 0x3, 0x40020, 0x28, 0x1, 0x7, 0x4003B, 0x28, 0x29, 0x1, 0x50036, 0x2, 0x4, 0x0, 0x3, 0x200F8, 0x5, 0x50041, 0x14, 0x15, 0x13, 0xF, 0x4003D, 0x10, 0x16, 0x15, 0x4003D, 0x17, 0x1A, 0x19, 0x50051, 0x6, 0x1D, 0x1A, 0x0, 0x50051, 0x6, 0x1E, 0x1A, 0x1, 0x70050, 0x7, 0x1F, 0x1D, 0x1E, 0x1B, 0x1C, 0x50091, 0x7, 0x20, 0x16, 0x1F, 0x50041, 0x21, 0x22, 0xD, 0xF, 0x3003E, 0x22, 0x20, 0x4003D, 0x17, 0x26, 0x25, 0x3003E, 0x24, 0x26, 0x4003D, 0x7, 0x2A, 0x29, 0x3003E, 0x27, 0x2A, 0x100FD, 0x10038, };
// clang-format on
// clang-format off
const unsigned int FragmentShader[] = { 0x7230203, 0x10000, 0x8000B, 0x39, 0x0, 0x20011, 0x1, 0x6000B, 0x1, 0x4C534C47, 0x6474732E, 0x3035342E, 0x0, 0x3000E, 0x0, 0x1, 0x8000F, 0x0, 0x4, 0x6E69616D, 0x0, 0x11, 0x22, 0x24, 0x30003, 0x2, 0x1CC, 0x40005, 0x4, 0x6E69616D, 0x0, 0x30005, 0x9, 0x6374, 0x30005, 0xD, 0x786574, 0x30005, 0x11, 0x56556F, 0x50005, 0x16, 0x68737550, 0x61746144, 0x0, 0x50006, 0x16, 0x0, 0x61666C61, 0x0, 0x40005, 0x18, 0x68737570, 0x0, 0x50005, 0x22, 0x67617246, 0x6F6C6F43, 0x72, 0x40005, 0x24, 0x6C6F436F, 0x726F, 0x40047, 0xD, 0x21, 0x0, 0x40047, 0xD, 0x22, 0x0, 0x40047, 0x11, 0x1E, 0x0, 0x30047, 0x16, 0x2, 0x50048, 0x16, 0x0, 0x23, 0x0, 0x40047, 0x24, 0x1E, 0x1, 0x20013, 0x2, 0x30021, 0x3, 0x2, 0x30016, 0x6, 0x20, 0x40017, 0x7, 0x6, 0x4, 0x40020, 0x8, 0x7, 0x7, 0x90019, 0xA, 0x6, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x3001B, 0xB, 0xA, 0x40020, 0xC, 0x0, 0xB, 0x4003B, 0xC, 0xD, 0x0, 0x40017, 0xF, 0x6, 0x2, 0x40020, 0x10, 0x1, 0xF, 0x4003B, 0x10, 0x11, 0x1, 0x4002B, 0x6, 0x13, 0x0, 0x40015, 0x15, 0x20, 0x1, 0x3001E, 0x16, 0x15, 0x40020, 0x17, 0x9, 0x16, 0x4003B, 0x17, 0x18, 0x9, 0x4002B, 0x15, 0x19, 0x0, 0x40020, 0x1A, 0x9, 0x15, 0x20014, 0x1D, 0x40020, 0x21, 0x3, 0x7, 0x4003B, 0x21, 0x22, 0x3, 0x40020, 0x23, 0x1, 0x7, 0x4003B, 0x23, 0x24, 0x1, 0x40017, 0x25, 0x6, 0x3, 0x40015, 0x28, 0x20, 0x0, 0x4002B, 0x28, 0x29, 0x3, 0x40020, 0x2A, 0x7, 0x6, 0x40020, 0x2D, 0x1, 0x6, 0x50036, 0x2, 0x4, 0x0, 0x3, 0x200F8, 0x5, 0x4003B, 0x8, 0x9, 0x7, 0x4003D, 0xB, 0xE, 0xD, 0x4003D, 0xF, 0x12, 0x11, 0x70058, 0x7, 0x14, 0xE, 0x12, 0x2, 0x13, 0x3003E, 0x9, 0x14, 0x50041, 0x1A, 0x1B, 0x18, 0x19, 0x4003D, 0x15, 0x1C, 0x1B, 0x500AB, 0x1D, 0x1E, 0x1C, 0x19, 0x300F7, 0x20, 0x0, 0x400FA, 0x1E, 0x1F, 0x35, 0x200F8, 0x1F, 0x4003D, 0x7, 0x26, 0x24, 0x8004F, 0x25, 0x27, 0x26, 0x26, 0x0, 0x1, 0x2, 0x50041, 0x2A, 0x2B, 0x9, 0x29, 0x4003D, 0x6, 0x2C, 0x2B, 0x50041, 0x2D, 0x2E, 0x24, 0x29, 0x4003D, 0x6, 0x2F, 0x2E, 0x50085, 0x6, 0x30, 0x2C, 0x2F, 0x50051, 0x6, 0x31, 0x27, 0x0, 0x50051, 0x6, 0x32, 0x27, 0x1, 0x50051, 0x6, 0x33, 0x27, 0x2, 0x70050, 0x7, 0x34, 0x31, 0x32, 0x33, 0x30, 0x3003E, 0x22, 0x34, 0x200F9, 0x20, 0x200F8, 0x35, 0x4003D, 0x7, 0x36, 0x9, 0x4003D, 0x7, 0x37, 0x24, 0x50085, 0x7, 0x38, 0x36, 0x37, 0x3003E, 0x22, 0x38, 0x200F9, 0x20, 0x200F8, 0x20, 0x100FD, 0x10038, };
// clang-format on
} // namespace Shaders
} // namespace PD