aiden/video-shader-toys
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Update shader
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This commit is contained in:
Aiden
2026-05-12 16:52:15 +10:00
parent 02b221f481
commit 1429b2e660
6 changed files with 178 additions and 18 deletions
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25
apps/RenderCadenceCompositor/render/runtime/RuntimeShaderRenderer.cpp
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@@ -9,7 +9,8 @@
namespace
{
constexpr GLuint kGlobalParamsBindingPoint = 0;
constexpr GLuint kSourceTextureUnit = 0;
constexpr GLuint kVideoInputTextureUnit = 0;
constexpr GLuint kLayerInputTextureUnit = 1;
const char* kVertexShaderSource = R"GLSL(
#version 430 core
@@ -127,7 +128,7 @@ bool RuntimeShaderRenderer::BuildPreparedProgram(
return true;
}
void RuntimeShaderRenderer::RenderFrame(uint64_t frameIndex, unsigned width, unsigned height)
void RuntimeShaderRenderer::RenderFrame(uint64_t frameIndex, unsigned width, unsigned height, GLuint sourceTexture, GLuint layerInputTexture)
{
if (mProgram == 0)
return;
@@ -137,7 +138,7 @@ void RuntimeShaderRenderer::RenderFrame(uint64_t frameIndex, unsigned width, uns
glDisable(GL_DEPTH_TEST);
glDisable(GL_BLEND);
UpdateGlobalParams(frameIndex, width, height);
BindRuntimeTextures();
BindRuntimeTextures(sourceTexture, layerInputTexture);
glBindVertexArray(mVertexArray);
glUseProgram(mProgram);
glDrawArrays(GL_TRIANGLES, 0, 3);
@@ -236,16 +237,16 @@ void RuntimeShaderRenderer::AssignSamplerUniforms(GLuint program)
glUseProgram(program);
const GLint videoInputLocation = glGetUniformLocation(program, "gVideoInput");
if (videoInputLocation >= 0)
glUniform1i(videoInputLocation, static_cast<GLint>(kSourceTextureUnit));
glUniform1i(videoInputLocation, static_cast<GLint>(kVideoInputTextureUnit));
const GLint videoInputArrayLocation = glGetUniformLocation(program, "gVideoInput_0");
if (videoInputArrayLocation >= 0)
glUniform1i(videoInputArrayLocation, static_cast<GLint>(kSourceTextureUnit));
glUniform1i(videoInputArrayLocation, static_cast<GLint>(kVideoInputTextureUnit));
const GLint layerInputLocation = glGetUniformLocation(program, "gLayerInput");
if (layerInputLocation >= 0)
glUniform1i(layerInputLocation, static_cast<GLint>(kSourceTextureUnit));
glUniform1i(layerInputLocation, static_cast<GLint>(kLayerInputTextureUnit));
const GLint layerInputArrayLocation = glGetUniformLocation(program, "gLayerInput_0");
if (layerInputArrayLocation >= 0)
glUniform1i(layerInputArrayLocation, static_cast<GLint>(kSourceTextureUnit));
glUniform1i(layerInputArrayLocation, static_cast<GLint>(kLayerInputTextureUnit));
glUseProgram(0);
}
@@ -268,10 +269,14 @@ void RuntimeShaderRenderer::UpdateGlobalParams(uint64_t frameIndex, unsigned wid
glBindBuffer(GL_UNIFORM_BUFFER, 0);
}
void RuntimeShaderRenderer::BindRuntimeTextures()
void RuntimeShaderRenderer::BindRuntimeTextures(GLuint sourceTexture, GLuint layerInputTexture)
{
glActiveTexture(GL_TEXTURE0 + kSourceTextureUnit);
glBindTexture(GL_TEXTURE_2D, mFallbackSourceTexture);
const GLuint resolvedSourceTexture = sourceTexture != 0 ? sourceTexture : mFallbackSourceTexture;
const GLuint resolvedLayerInputTexture = layerInputTexture != 0 ? layerInputTexture : resolvedSourceTexture;
glActiveTexture(GL_TEXTURE0 + kVideoInputTextureUnit);
glBindTexture(GL_TEXTURE_2D, resolvedSourceTexture);
glActiveTexture(GL_TEXTURE0 + kLayerInputTextureUnit);
glBindTexture(GL_TEXTURE_2D, resolvedLayerInputTexture);
glActiveTexture(GL_TEXTURE0);
}