diff options
| -rw-r--r-- | src/video_core/renderer_opengl/gl_rasterizer.cpp | 195 |
1 files changed, 194 insertions, 1 deletions
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp index 982e84768..c44ce4a18 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp @@ -197,8 +197,201 @@ bool RasterizerOpenGL::AccelerateDrawBatch(bool is_indexed) { } void RasterizerOpenGL::DrawTriangles() { + if (accelerate_draw == AccelDraw::Disabled) + return; + MICROPROFILE_SCOPE(OpenGL_Drawing); - UNIMPLEMENTED(); + const auto& regs = Core::System().GetInstance().GPU().Maxwell3D().regs; + + // TODO(bunnei): Implement these + const bool has_stencil = false; + const bool using_color_fb = true; + const bool using_depth_fb = false; + + MathUtil::Rectangle<s32> viewport_rect_unscaled{ + static_cast<s32>(regs.viewport[0].x), // left + static_cast<s32>(regs.viewport[0].y + regs.viewport[0].height), // top + static_cast<s32>(regs.viewport[0].x + regs.viewport[0].width), // right + static_cast<s32>(regs.viewport[0].y) // bottom + }; + + const bool write_color_fb = + state.color_mask.red_enabled == GL_TRUE || state.color_mask.green_enabled == GL_TRUE || + state.color_mask.blue_enabled == GL_TRUE || state.color_mask.alpha_enabled == GL_TRUE; + + const bool write_depth_fb = + (state.depth.test_enabled && state.depth.write_mask == GL_TRUE) || + (has_stencil && state.stencil.test_enabled && state.stencil.write_mask != 0); + + Surface color_surface; + Surface depth_surface; + MathUtil::Rectangle<u32> surfaces_rect; + std::tie(color_surface, depth_surface, surfaces_rect) = + res_cache.GetFramebufferSurfaces(using_color_fb, using_depth_fb, viewport_rect_unscaled); + + const u16 res_scale = color_surface != nullptr + ? color_surface->res_scale + : (depth_surface == nullptr ? 1u : depth_surface->res_scale); + + MathUtil::Rectangle<u32> draw_rect{ + static_cast<u32>(MathUtil::Clamp<s32>(static_cast<s32>(surfaces_rect.left) + + viewport_rect_unscaled.left * res_scale, + surfaces_rect.left, surfaces_rect.right)), // Left + static_cast<u32>(MathUtil::Clamp<s32>(static_cast<s32>(surfaces_rect.bottom) + + viewport_rect_unscaled.top * res_scale, + surfaces_rect.bottom, surfaces_rect.top)), // Top + static_cast<u32>(MathUtil::Clamp<s32>(static_cast<s32>(surfaces_rect.left) + + viewport_rect_unscaled.right * res_scale, + surfaces_rect.left, surfaces_rect.right)), // Right + static_cast<u32>(MathUtil::Clamp<s32>(static_cast<s32>(surfaces_rect.bottom) + + viewport_rect_unscaled.bottom * res_scale, + surfaces_rect.bottom, surfaces_rect.top))}; // Bottom + + // Bind the framebuffer surfaces + state.draw.draw_framebuffer = framebuffer.handle; + state.Apply(); + + glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, + color_surface != nullptr ? color_surface->texture.handle : 0, 0); + if (depth_surface != nullptr) { + if (has_stencil) { + // attach both depth and stencil + glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, + depth_surface->texture.handle, 0); + } else { + // attach depth + glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, + depth_surface->texture.handle, 0); + // clear stencil attachment + glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0); + } + } else { + // clear both depth and stencil attachment + glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, + 0); + } + + // Sync the viewport + state.viewport.x = + static_cast<GLint>(surfaces_rect.left) + viewport_rect_unscaled.left * res_scale; + state.viewport.y = + static_cast<GLint>(surfaces_rect.bottom) + viewport_rect_unscaled.bottom * res_scale; + state.viewport.width = static_cast<GLsizei>(viewport_rect_unscaled.GetWidth() * res_scale); + state.viewport.height = static_cast<GLsizei>(viewport_rect_unscaled.GetHeight() * res_scale); + + // TODO(bunnei): Sync framebuffer_scale uniform here + // TODO(bunnei): Sync scissorbox uniform(s) here + // TODO(bunnei): Sync and bind the texture surfaces + + // Sync and bind the shader + if (shader_dirty) { + SetShader(); + shader_dirty = false; + } + + // Sync the uniform data + if (uniform_block_data.dirty) { + glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(UniformData), &uniform_block_data.data); + uniform_block_data.dirty = false; + } + + // Viewport can have negative offsets or larger dimensions than our framebuffer sub-rect. Enable + // scissor test to prevent drawing outside of the framebuffer region + state.scissor.enabled = true; + state.scissor.x = draw_rect.left; + state.scissor.y = draw_rect.bottom; + state.scissor.width = draw_rect.GetWidth(); + state.scissor.height = draw_rect.GetHeight(); + state.Apply(); + + // Draw the vertex batch + GLenum primitive_mode; + switch (regs.draw.topology) { + case Maxwell::PrimitiveTopology::TriangleStrip: + primitive_mode = GL_TRIANGLE_STRIP; + break; + default: + UNREACHABLE(); + } + + const bool is_indexed = accelerate_draw == AccelDraw::Indexed; + + AnalyzeVertexArray(is_indexed); + state.draw.vertex_buffer = stream_buffer->GetHandle(); + state.Apply(); + + size_t buffer_size = static_cast<size_t>(vs_input_size); + if (is_indexed) { + UNREACHABLE(); + } + buffer_size += sizeof(VSUniformData); + + size_t ptr_pos = 0; + u8* buffer_ptr; + GLintptr buffer_offset; + std::tie(buffer_ptr, buffer_offset) = + stream_buffer->Map(static_cast<GLsizeiptr>(buffer_size), 4); + + SetupVertexArray(buffer_ptr, buffer_offset); + ptr_pos += vs_input_size; + + GLintptr index_buffer_offset = 0; + if (is_indexed) { + UNREACHABLE(); + } + + SetupVertexShader(reinterpret_cast<VSUniformData*>(&buffer_ptr[ptr_pos]), + buffer_offset + static_cast<GLintptr>(ptr_pos)); + const GLintptr vs_ubo_offset = buffer_offset + static_cast<GLintptr>(ptr_pos); + ptr_pos += sizeof(VSUniformData); + + stream_buffer->Unmap(); + + const auto copy_buffer = [&](GLuint handle, GLintptr offset, GLsizeiptr size) { + if (has_ARB_direct_state_access) { + glCopyNamedBufferSubData(stream_buffer->GetHandle(), handle, offset, 0, size); + } else { + glBindBuffer(GL_COPY_WRITE_BUFFER, handle); + glCopyBufferSubData(GL_ARRAY_BUFFER, GL_COPY_WRITE_BUFFER, offset, 0, size); + } + }; + + copy_buffer(vs_uniform_buffer.handle, vs_ubo_offset, sizeof(VSUniformData)); + + glUseProgramStages(pipeline.handle, GL_FRAGMENT_SHADER_BIT, current_shader->shader.handle); + + if (is_indexed) { + UNREACHABLE(); + } else { + glDrawArrays(primitive_mode, 0, regs.vertex_buffer.count); + } + + // Disable scissor test + state.scissor.enabled = false; + + accelerate_draw = AccelDraw::Disabled; + + // Unbind textures for potential future use as framebuffer attachments + for (auto& texture_unit : state.texture_units) { + texture_unit.texture_2d = 0; + } + state.Apply(); + + // Mark framebuffer surfaces as dirty + MathUtil::Rectangle<u32> draw_rect_unscaled{ + draw_rect.left / res_scale, draw_rect.top / res_scale, draw_rect.right / res_scale, + draw_rect.bottom / res_scale}; + + if (color_surface != nullptr && write_color_fb) { + auto interval = color_surface->GetSubRectInterval(draw_rect_unscaled); + res_cache.InvalidateRegion(boost::icl::first(interval), boost::icl::length(interval), + color_surface); + } + if (depth_surface != nullptr && write_depth_fb) { + auto interval = depth_surface->GetSubRectInterval(draw_rect_unscaled); + res_cache.InvalidateRegion(boost::icl::first(interval), boost::icl::length(interval), + depth_surface); + } } void RasterizerOpenGL::NotifyMaxwellRegisterChanged(u32 id) {} |