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HostDisplay: Use border sampling for post processing shaders

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This commit is contained in:
Connor McLaughlin
2022-10-13 22:53:09 +10:00
parent c528a96215
commit ccfe3925fc
12 changed files with 78 additions and 17 deletions
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27
src/frontend-common/opengl_host_display.cpp
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@ -510,6 +510,20 @@ void main()
glGenSamplers(1, &m_display_linear_sampler);
glSamplerParameteri(m_display_linear_sampler, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glSamplerParameteri(m_display_linear_sampler, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glGenSamplers(1, &m_display_border_sampler);
glSamplerParameteri(m_display_border_sampler, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glSamplerParameteri(m_display_border_sampler, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
// If we don't have border clamp.. too bad, just hope for the best.
if (!m_gl_context->IsGLES() || GLAD_GL_ES_VERSION_3_2 || GLAD_GL_NV_texture_border_clamp ||
GLAD_GL_EXT_texture_border_clamp || GLAD_GL_OES_texture_border_clamp)
{
static constexpr const float border_color[4] = {0.0f, 0.0f, 0.0f, 1.0f};
glSamplerParameteri(m_display_border_sampler, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
glSamplerParameteri(m_display_border_sampler, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
glTexParameterfv(m_display_border_sampler, GL_TEXTURE_BORDER_COLOR, border_color);
}
}
else
{
@ -594,6 +608,11 @@ void OpenGLHostDisplay::DestroyResources()
glDeleteVertexArrays(1, &m_display_vao);
m_display_vao = 0;
}
if (m_display_border_sampler != 0)
{
glDeleteSamplers(1, &m_display_border_sampler);
m_display_border_sampler = 0;
}
if (m_display_linear_sampler != 0)
{
glDeleteSamplers(1, &m_display_linear_sampler);
@ -657,9 +676,9 @@ bool OpenGLHostDisplay::RenderScreenshot(u32 width, u32 height, std::vector<u32>
if (HasDisplayTexture() && !m_post_processing_chain.IsEmpty())
{
ApplyPostProcessingChain(texture.GetGLFramebufferID(), left, height - top - draw_height, draw_width, draw_height,
static_cast<GL::Texture*>(m_display_texture), m_display_texture_view_x,
m_display_texture_view_y, m_display_texture_view_width, m_display_texture_view_height,
width, height);
static_cast<GL::Texture*>(m_display_texture), m_display_texture_view_x,
m_display_texture_view_y, m_display_texture_view_width, m_display_texture_view_height,
width, height);
}
else
{
@ -952,7 +971,7 @@ void OpenGLHostDisplay::ApplyPostProcessingChain(GLuint final_target, s32 final_
pps.program.Bind();
static_cast<const GL::Texture*>(texture)->Bind();
glBindSampler(0, m_display_nearest_sampler);
glBindSampler(0, m_display_border_sampler);
const auto map_result = m_post_processing_ubo->Map(m_uniform_buffer_alignment, pps.uniforms_size);
m_post_processing_chain.GetShaderStage(i).FillUniformBuffer(