scissor test

burhanr13 · Dec 8, 2024 · 4b983b4 · 4b983b4
1 parent 300c97c
commit 4b983b4
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Showing 3 changed files with 18 additions and 4 deletions.
diff --git a/src/pica/gpu.c b/src/pica/gpu.c
@@ -1,7 +1,7 @@
 #include "gpu.h"
 
-#include "../emulator_state.h"
 #include "../3ds.h"
+#include "../emulator_state.h"
 #include "etc1.h"
 #include "renderer_gl.h"
 #include "shader.h"
@@ -1011,6 +1011,18 @@ void gpu_update_gl_state(GPU* gpu) {
                gpu->io.raster.view_y * ctremu.videoscale,
                2 * cvtf24(gpu->io.raster.view_w) * ctremu.videoscale,
                2 * cvtf24(gpu->io.raster.view_h) * ctremu.videoscale);
+    if (gpu->io.raster.scisssortest.enable) {
+        glEnable(GL_SCISSOR_TEST);
+        glScissor(
+            gpu->io.raster.scisssortest.x1 * ctremu.videoscale,
+            gpu->io.raster.scisssortest.y1 * ctremu.videoscale,
+            (gpu->io.raster.scisssortest.x2 - gpu->io.raster.scisssortest.x1) *
+                ctremu.videoscale,
+            (gpu->io.raster.scisssortest.y2 - gpu->io.raster.scisssortest.y1) *
+                ctremu.videoscale);
+    } else {
+        glDisable(GL_SCISSOR_TEST);
+    }
 
     if (gpu->io.raster.depthmap_enable) {
         float offset = cvtf24(gpu->io.raster.depthmap_offset);

diff --git a/src/pica/gpu.h b/src/pica/gpu.h
@@ -119,9 +119,10 @@ typedef union {
                 u32 earlydepth_test1;
                 u32 earlydepth_clear;
                 u32 sh_outattr_mode;
-                u32 scissortest_mode;
-                u32 scissortest_pos;
-                u32 scissortest_dim;
+                struct {
+                    u32 enable;
+                    u16 x1, y1, x2, y2;
+                } scisssortest;
                 s16 view_x;
                 s16 view_y;
                 u32 _069;

diff --git a/src/pica/renderer_gl.c b/src/pica/renderer_gl.c
@@ -165,6 +165,7 @@ void render_gl_main(GLState* state) {
     glDisable(GL_DEPTH_TEST);
     glDisable(GL_STENCIL_TEST);
     glDisable(GL_CULL_FACE);
+    glDisable(GL_SCISSOR_TEST);
 
 #ifdef WIREFRAME
     glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);