From 9a95c7fa14bdfc14aacea92896c8ae8533918fe8 Mon Sep 17 00:00:00 2001
From: FengChen <vonchenplus@gmail.com>
Date: Thu, 1 Sep 2022 22:05:11 +0800
Subject: video_core: Generate mipmap texture by drawing

---
 src/video_core/renderer_opengl/gl_graphics_pipeline.cpp | 11 +++++++++++
 src/video_core/renderer_opengl/gl_rasterizer.cpp        | 10 ++++++++++
 src/video_core/renderer_opengl/gl_shader_cache.cpp      |  2 +-
 3 files changed, 22 insertions(+), 1 deletion(-)

(limited to 'src/video_core/renderer_opengl')

diff --git a/src/video_core/renderer_opengl/gl_graphics_pipeline.cpp b/src/video_core/renderer_opengl/gl_graphics_pipeline.cpp
index 67eae369d..c297f7121 100644
--- a/src/video_core/renderer_opengl/gl_graphics_pipeline.cpp
+++ b/src/video_core/renderer_opengl/gl_graphics_pipeline.cpp
@@ -502,6 +502,17 @@ void GraphicsPipeline::ConfigureImpl(bool is_indexed) {
                                    float_image_scaling_mask, down_factor, 0.0f);
             }
         }
+        if (info.uses_render_area) {
+            const auto render_area_width(static_cast<GLfloat>(regs.render_area.width));
+            const auto render_area_height(static_cast<GLfloat>(regs.render_area.height));
+            if (use_assembly) {
+                glProgramLocalParameter4fARB(AssemblyStage(stage), 1, render_area_width,
+                                             render_area_height, 0.0f, 0.0f);
+            } else {
+                glProgramUniform4f(source_programs[stage].handle, 1, render_area_width,
+                                   render_area_height, 0.0f, 0.0f);
+            }
+        }
     }};
     if constexpr (Spec::enabled_stages[0]) {
         prepare_stage(0);
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index a0d048b0b..f018333af 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -622,6 +622,16 @@ void RasterizerOpenGL::SyncViewport() {
             }
             flags[Dirty::Viewport0 + index] = false;
 
+            if (!regs.viewport_transform_enabled) {
+                const auto x = static_cast<GLfloat>(regs.render_area.x);
+                const auto y = static_cast<GLfloat>(regs.render_area.y);
+                const auto width = static_cast<GLfloat>(regs.render_area.width);
+                const auto height = static_cast<GLfloat>(regs.render_area.height);
+                glViewportIndexedf(static_cast<GLuint>(index), x, y, width != 0.0f ? width : 1.0f,
+                                   height != 0.0f ? height : 1.0f);
+                continue;
+            }
+
             const auto& src = regs.viewport_transform[index];
             GLfloat x = conv(src.translate_x - src.scale_x);
             GLfloat y = conv(src.translate_y - src.scale_y);
diff --git a/src/video_core/renderer_opengl/gl_shader_cache.cpp b/src/video_core/renderer_opengl/gl_shader_cache.cpp
index 1ad56d9e7..7e76f679f 100644
--- a/src/video_core/renderer_opengl/gl_shader_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_cache.cpp
@@ -49,7 +49,7 @@ using VideoCommon::LoadPipelines;
 using VideoCommon::SerializePipeline;
 using Context = ShaderContext::Context;
 
-constexpr u32 CACHE_VERSION = 5;
+constexpr u32 CACHE_VERSION = 7;
 
 template <typename Container>
 auto MakeSpan(Container& container) {
-- 
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