GPU binding FBA

gistfile1.diff

diff --git a/src/interface/PS3/vid_interface_ps3.cpp b/src/interface/PS3/vid_interface_ps3.cpp
index 3eda11f..4a7667e 100644
--- a/src/interface/PS3/vid_interface_ps3.cpp
+++ b/src/interface/PS3/vid_interface_ps3.cpp
@@ -18,7 +18,6 @@ float vidScrnAspect = ASPECT_RATIO_4_3;		// Aspect ratio
 unsigned char* pVidImage = NULL;		// Memory buffer
 int nVidImageWidth = DEFAULT_IMAGE_WIDTH;	// Memory buffer size
 int nVidImageHeight = DEFAULT_IMAGE_HEIGHT;
-int nVidImageLeft = 0, nVidImageTop = 0;	// Memory buffer visible area offsets
 int nVidImagePitch = 0;				// Memory buffer pitch
 bool bVidRecalcPalette;
 bool bVidFBOEnabled;				// FBO/Dual shader mode
@@ -121,7 +120,8 @@ int VidExit()
 int VidFrame_RecalcPalette()
 {
 	unsigned short* pSrc = (unsigned short*)pVidTransImage;
-	unsigned char* pDest = pVidImage;
+	uint8_t * texture = (uint8_t*)glMapBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE, GL_READ_WRITE);
+	unsigned char* pDest = texture;
 
 	uint64_t r = 0;
 	do{
@@ -141,13 +141,16 @@ int VidFrame_RecalcPalette()
 	}while(r < 256);
 	bVidRecalcPalette = false;
 
+	glUnmapBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE);
+	glTextureReferenceSCE(GL_TEXTURE_2D, 1, nVidImageWidth, nVidImageHeight, 1, SCREEN_RENDER_TEXTURE_PIXEL_FORMAT, nVidImageWidth << SCREEN_RENDER_TEXTURE_BPP_SHIFT, 0);
 	return 0;
 }
 
 int VidFrame_Recalc()
 {
 	unsigned short* pSrc = (unsigned short*)pVidTransImage;
-	unsigned char* pDest = pVidImage;
+	uint8_t * texture = (uint8_t*)glMapBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE, GL_READ_WRITE);
+	unsigned char* pDest = texture;
 
 	pBurnDraw = pVidTransImage;
 	nBurnPitch = nVidImageWidth << 1;
@@ -168,14 +171,19 @@ int VidFrame_Recalc()
 		pDest += nVidImagePitch;
 	}while(y < nVidImageHeight);
 
+	glUnmapBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE);
+	glTextureReferenceSCE(GL_TEXTURE_2D, 1, nVidImageWidth, nVidImageHeight, 1, SCREEN_RENDER_TEXTURE_PIXEL_FORMAT, nVidImageWidth << SCREEN_RENDER_TEXTURE_BPP_SHIFT, 0);
 	return 0;
 }
 
 int VidFrame()
 {
-	pBurnDraw = pVidImage;
+	uint8_t * texture = (uint8_t*)glMapBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE, GL_READ_WRITE);
+	pBurnDraw = texture;
 	nBurnPitch = nVidImagePitch;
 	BurnDrvFrame();
+	glUnmapBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE);
+	glTextureReferenceSCE(GL_TEXTURE_2D, 1, nVidImageWidth, nVidImageHeight, 1, SCREEN_RENDER_TEXTURE_PIXEL_FORMAT, nVidImageWidth << SCREEN_RENDER_TEXTURE_BPP_SHIFT, 0);
 	psglRender();
 
 	return 0;
diff --git a/src/interface/PS3/vid_psgl.cpp b/src/interface/PS3/vid_psgl.cpp
index 83cb867..5fd0117 100644
--- a/src/interface/PS3/vid_psgl.cpp
+++ b/src/interface/PS3/vid_psgl.cpp
@@ -549,12 +549,7 @@ void psglRender(void)
 {
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
 
-	uint8_t * texture = (uint8_t*)glMapBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE, GL_WRITE_ONLY);
-	VidSCopyImage(texture);
-	glUnmapBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE);
-
 	frame_count += 1;
-	glTextureReferenceSCE(GL_TEXTURE_2D, 1, nVidImageWidth, nVidImageHeight, 0, SCREEN_RENDER_TEXTURE_PIXEL_FORMAT, nVidImageWidth << SCREEN_RENDER_TEXTURE_BPP_SHIFT, 0);
 	set_cg_params();
 
 	glDrawArrays(GL_QUADS, 0, 4);
@@ -628,7 +623,7 @@ void psglRenderAlpha(void)
 		}
 	}
 	glUnmapBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE);
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, nVidImageWidth, nVidImageHeight, 0, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, 0);
+	glTextureReferenceSCE(GL_TEXTURE_2D, 1, nVidImageWidth, nVidImageHeight, 1, SCREEN_RENDER_TEXTURE_PIXEL_FORMAT, nVidImageWidth << SCREEN_RENDER_TEXTURE_BPP_SHIFT, 0);
 	set_cg_params();
 	glDrawArrays(GL_QUADS, 0, 4);
 }
diff --git a/src/interface/PS3/vid_support-ps3.h b/src/interface/PS3/vid_support-ps3.h
index cffdc63..569f41c 100644
--- a/src/interface/PS3/vid_support-ps3.h
+++ b/src/interface/PS3/vid_support-ps3.h
@@ -35,7 +35,7 @@ void VidInitInfo();
 
 #define VidSCopyImage(dst) \
 	unsigned int pitch = nVidImageWidth * sizeof(unsigned int); \
-	uint8_t * ps = pVidImage + (nVidImageLeft << SCREEN_RENDER_TEXTURE_BPP_SHIFT); \
+	uint8_t * ps = pVidImage; \
 	int linesize = nVidImageWidth << SCREEN_RENDER_TEXTURE_BPP_SHIFT; \
 	uint16_t height = nVidImageHeight; \
 	do{ \

To my surprise, this ended up being slower than the method we do now where we render first to a buffer and then blit to GPU RAM instead of doing it directly. Seems FBA uses pBurnDraw as some sort of scratchpad for graphics.