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GPUDevice: Add support for feedback loops

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This commit is contained in:
Stenzek
2024-03-08 17:55:02 +10:00
parent cc5f9a12b1
commit 72ab669e70
23 changed files with 426 additions and 191 deletions
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15
src/util/opengl_device.cpp
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@ -403,8 +403,9 @@ bool OpenGLDevice::CheckFeatures(FeatureMask disabled_features)
!(disabled_features & FEATURE_MASK_DUAL_SOURCE_BLEND) && (max_dual_source_draw_buffers > 0) &&
(GLAD_GL_VERSION_3_3 || GLAD_GL_ARB_blend_func_extended || GLAD_GL_EXT_blend_func_extended);
m_features.framebuffer_fetch = !(disabled_features & FEATURE_MASK_FRAMEBUFFER_FETCH) &&
(GLAD_GL_EXT_shader_framebuffer_fetch || GLAD_GL_ARM_shader_framebuffer_fetch);
m_features.framebuffer_fetch =
!(disabled_features & (FEATURE_MASK_FEEDBACK_LOOPS | FEATURE_MASK_FRAMEBUFFER_FETCH)) &&
(GLAD_GL_EXT_shader_framebuffer_fetch || GLAD_GL_ARM_shader_framebuffer_fetch);
#ifdef __APPLE__
// Partial texture buffer uploads appear to be broken in macOS's OpenGL driver.
@ -469,6 +470,8 @@ bool OpenGLDevice::CheckFeatures(FeatureMask disabled_features)
// So, blit from the shadow texture, like in the other renderers.
m_features.texture_copy_to_self = !vendor_id_arm && !(disabled_features & FEATURE_MASK_TEXTURE_COPY_TO_SELF);
m_features.feedback_loops = m_features.framebuffer_fetch;
m_features.geometry_shaders =
!(disabled_features & FEATURE_MASK_GEOMETRY_SHADERS) && (GLAD_GL_VERSION_3_2 || GLAD_GL_ES_VERSION_3_2);
@ -1035,6 +1038,11 @@ void OpenGLDevice::DrawIndexed(u32 index_count, u32 base_index, u32 base_vertex)
glDrawElements(m_current_pipeline->GetTopology(), index_count, GL_UNSIGNED_SHORT, indices);
}
void OpenGLDevice::DrawIndexedWithBarrier(u32 index_count, u32 base_index, u32 base_vertex, DrawBarrier type)
{
Panic("Barriers are not supported");
}
void OpenGLDevice::MapVertexBuffer(u32 vertex_size, u32 vertex_count, void** map_ptr, u32* map_space,
u32* map_base_vertex)
{
@ -1088,8 +1096,9 @@ void OpenGLDevice::UnmapUniformBuffer(u32 size)
glBindBufferRange(GL_UNIFORM_BUFFER, 1, m_uniform_buffer->GetGLBufferId(), pos, size);
}
void OpenGLDevice::SetRenderTargets(GPUTexture* const* rts, u32 num_rts, GPUTexture* ds)
void OpenGLDevice::SetRenderTargets(GPUTexture* const* rts, u32 num_rts, GPUTexture* ds, GPUPipeline::RenderPassFlag feedback_loop)
{
//DebugAssert(!feedback_loop); TODO
bool changed = (m_num_current_render_targets != num_rts || m_current_depth_target != ds);
bool needs_ds_clear = (ds && ds->IsClearedOrInvalidated());
bool needs_rt_clear = false;