if (dst_y>=fxMesa->pClipRects[i].y1 && dst_y<fxMesa->pClipRects[i].y2) {
if (dst_x<fxMesa->pClipRects[i].x1) {
x=fxMesa->pClipRects[i].x1;
- data=((char*)src_data)+srcElt*(dst_x-x);
+ data=((char*)src_data)+srcElt*(x - dst_x);
w=src_width-(x-dst_x);
} else {
x=dst_x;
}
+#if 0
static void fxDDReadRGBASpan(const GLcontext *ctx,
GLuint n, GLint x, GLint y, GLubyte rgba[][4])
{
GLuint i;
GLint bottom=fxMesa->height+fxMesa->y_offset-1;
+ printf("read span %d, %d, %d\n", x,y,n);
if (MESA_VERBOSE&VERBOSE_DRIVER) {
fprintf(stderr,"fxmesa: fxDDReadRGBASpan(...)\n");
}
rgba[i][ACOMP] = 255;
}
}
+#endif
+
+
+/*
+ * Read a span of 16-bit RGB pixels. Note, we don't worry about cliprects
+ * since OpenGL says obscured pixels have undefined values.
+ */
+static void read_R5G6B5_span(const GLcontext *ctx,
+ GLuint n, GLint x, GLint y, GLubyte rgba[][4])
+{
+ fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
+ GrLfbInfo_t info;
+ BEGIN_BOARD_LOCK();
+ if (grLfbLock(GR_LFB_READ_ONLY,
+ fxMesa->currentFB,
+ GR_LFBWRITEMODE_ANY,
+ GR_ORIGIN_UPPER_LEFT,
+ FXFALSE,
+ &info)) {
+ const GLint winX = fxMesa->x_offset;
+ const GLint winY = fxMesa->y_offset + fxMesa->height - 1;
+#ifdef XF86DRI
+ const GLint srcStride = (fxMesa->glCtx->Color.DrawBuffer == GL_FRONT)
+ ? (fxMesa->screen_width) : (info.strideInBytes / 2);
+#else
+ const GLint srcStride = info.strideInBytes / 2; /* stride in GLushorts */
+#endif
+ const GLushort *data16 = (const GLushort *) info.lfbPtr
+ + (winY - y) * srcStride
+ + (winX + x);
+ const GLuint *data32 = (const GLuint *) data16;
+ GLuint i, j;
+ GLuint extraPixel = (n & 1);
+ n -= extraPixel;
+ for (i = j = 0; i < n; i += 2, j++) {
+ GLuint pixel = data32[j];
+ GLuint pixel0 = pixel & 0xffff;
+ GLuint pixel1 = pixel >> 16;
+ rgba[i][RCOMP] = FX_PixelToR[pixel0];
+ rgba[i][GCOMP] = FX_PixelToG[pixel0];
+ rgba[i][BCOMP] = FX_PixelToB[pixel0];
+ rgba[i][ACOMP] = 255;
+ rgba[i+1][RCOMP] = FX_PixelToR[pixel1];
+ rgba[i+1][GCOMP] = FX_PixelToG[pixel1];
+ rgba[i+1][BCOMP] = FX_PixelToB[pixel1];
+ rgba[i+1][ACOMP] = 255;
+ }
+ if (extraPixel) {
+ GLushort pixel = data16[n];
+ rgba[n][RCOMP] = FX_PixelToR[pixel];
+ rgba[n][GCOMP] = FX_PixelToG[pixel];
+ rgba[n][BCOMP] = FX_PixelToB[pixel];
+ rgba[n][ACOMP] = 255;
+ }
+
+ grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
+ }
+ END_BOARD_LOCK();
+}
+
/************************************************************************/
/***** Pixel functions *****/
GR_LFB_SRC_FMT_8888,1,1,0,(void *) &fxMesa->color);
}
-static void fxDDReadRGBAPixels(const GLcontext *ctx,
+
+static void read_R5G6B5_pixels(const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
GLubyte rgba[][4], const GLubyte mask[])
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- GLuint i;
- GLint bottom=fxMesa->y_delta-1;
-
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDReadRGBAPixels(...)\n");
- }
-
- for(i=0;i<n;i++) {
- if(mask[i]) {
- GLushort pixel;
- FX_grLfbReadRegion(fxMesa->currentFB,x[i],bottom-y[i],1,1,0,&pixel);
- rgba[i][RCOMP] = FX_PixelToR[pixel];
- rgba[i][GCOMP] = FX_PixelToG[pixel];
- rgba[i][BCOMP] = FX_PixelToB[pixel];
- rgba[i][ACOMP] = 255;
+ fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+ GrLfbInfo_t info;
+ BEGIN_BOARD_LOCK();
+ if (grLfbLock(GR_LFB_READ_ONLY,
+ fxMesa->currentFB,
+ GR_LFBWRITEMODE_ANY,
+ GR_ORIGIN_UPPER_LEFT,
+ FXFALSE,
+ &info)) {
+#ifdef XF86DRI
+ const GLint srcStride = (fxMesa->glCtx->Color.DrawBuffer == GL_FRONT)
+ ? (fxMesa->screen_width) : (info.strideInBytes / 2);
+#else
+ const GLint srcStride = info.strideInBytes / 2; /* stride in GLushorts */
+#endif
+ const GLint winX = fxMesa->x_offset;
+ const GLint winY = fxMesa->y_offset + fxMesa->height - 1;
+ GLuint i;
+ for(i=0;i<n;i++) {
+ if(mask[i]) {
+ const GLushort *data16 = (const GLushort *) info.lfbPtr
+ + (winY - y[i]) * srcStride
+ + (winX + x[i]);
+ const GLushort pixel = *data16;
+ rgba[i][RCOMP] = FX_PixelToR[pixel];
+ rgba[i][GCOMP] = FX_PixelToG[pixel];
+ rgba[i][BCOMP] = FX_PixelToB[pixel];
+ rgba[i][ACOMP] = 255;
+ }
}
+ grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
}
+ END_BOARD_LOCK();
}
+
/************************************************************************/
/***** Depth functions *****/
/************************************************************************/
GLuint n, GLint x, GLint y, const GLdepth depth[],
const GLubyte mask[])
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- GLint bottom=fxMesa->height+fxMesa->y_offset-1;
+ fxMesaContext fxMesa = (fxMesaContext)ctx->DriverCtx;
+ GLint bottom = fxMesa->height + fxMesa->y_offset - 1;
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDReadDepthSpanInt(...)\n");
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxDDWriteDepthSpan(...)\n");
}
x += fxMesa->x_offset;
GLint i;
for (i = 0; i < n; i++) {
if (mask[i]) {
- writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, x + i, bottom-y,
- GR_LFB_SRC_FMT_ZA16, 1, 1, 0, (void *) &depth[i]);
+ GLshort d = depth[i];
+ writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, x + i, bottom - y,
+ GR_LFB_SRC_FMT_ZA16, 1, 1, 0, (void *) &d);
}
}
}
else {
- writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, x, bottom-y,
- GR_LFB_SRC_FMT_ZA16, n, 1, 0, (void *) depth);
+ GLushort depth16[MAX_WIDTH];
+ GLint i;
+ for (i = 0; i < n; i++) {
+ depth16[i] = depth[i];
+ }
+ writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, x, bottom - y,
+ GR_LFB_SRC_FMT_ZA16, n, 1, 0, (void *) depth16);
}
}
void fxDDReadDepthSpan(GLcontext *ctx,
GLuint n, GLint x, GLint y, GLdepth depth[])
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- GLint bottom=fxMesa->height+fxMesa->y_offset-1;
+ fxMesaContext fxMesa = (fxMesaContext)ctx->DriverCtx;
+ GLint bottom = fxMesa->height + fxMesa->y_offset - 1;
+ GLushort depth16[MAX_WIDTH];
+ GLuint i;
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDReadDepthSpanInt(...)\n");
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxDDReadDepthSpan(...)\n");
}
- x+=fxMesa->x_offset;
- FX_grLfbReadRegion(GR_BUFFER_AUXBUFFER,x,bottom-y,n,1,0,depth);
+ x += fxMesa->x_offset;
+ FX_grLfbReadRegion(GR_BUFFER_AUXBUFFER, x, bottom - y, n, 1, 0, depth16);
+ for (i = 0; i < n; i++) {
+ depth[i] = depth16[i];
+ }
}
GLuint n, const GLint x[], const GLint y[],
const GLdepth depth[], const GLubyte mask[])
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- GLint bottom=fxMesa->height+fxMesa->y_offset-1;
+ fxMesaContext fxMesa = (fxMesaContext)ctx->DriverCtx;
+ GLint bottom = fxMesa->height + fxMesa->y_offset - 1;
GLuint i;
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDReadDepthSpanInt(...)\n");
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxDDWriteDepthPixels(...)\n");
}
for (i = 0; i < n; i++) {
if (mask[i]) {
int xpos = x[i] + fxMesa->x_offset;
int ypos = bottom - y[i];
+ GLushort d = depth[i];
writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, xpos, ypos,
- GR_LFB_SRC_FMT_ZA16, 1, 1, 0, (void *) &depth[i]);
+ GR_LFB_SRC_FMT_ZA16, 1, 1, 0, (void *) &d);
}
}
}
void fxDDReadDepthPixels(GLcontext *ctx, GLuint n,
const GLint x[], const GLint y[], GLdepth depth[])
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- GLint bottom=fxMesa->height+fxMesa->y_offset-1;
+ fxMesaContext fxMesa = (fxMesaContext)ctx->DriverCtx;
+ GLint bottom = fxMesa->height + fxMesa->y_offset - 1;
GLuint i;
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDReadDepthSpanInt(...)\n");
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxDDReadDepthPixels(...)\n");
}
-
for (i = 0; i < n; i++) {
int xpos = x[i] + fxMesa->x_offset;
int ypos = bottom - y[i];
- FX_grLfbReadRegion(GR_BUFFER_AUXBUFFER,xpos,ypos,1,1,0,&depth[i]);
+ GLushort d;
+ FX_grLfbReadRegion(GR_BUFFER_AUXBUFFER, xpos, ypos, 1, 1, 0, &d);
+ depth[i] = d;
}
}
ctx->Driver.WriteCI32Pixels =NULL;
ctx->Driver.WriteMonoCIPixels =NULL;
- ctx->Driver.ReadRGBASpan =fxDDReadRGBASpan;
- ctx->Driver.ReadRGBAPixels =fxDDReadRGBAPixels;
+ /* ctx->Driver.ReadRGBASpan =fxDDReadRGBASpan;*/
+ ctx->Driver.ReadRGBASpan = read_R5G6B5_span;
+ ctx->Driver.ReadRGBAPixels = read_R5G6B5_pixels;
ctx->Driver.ReadCI32Span =NULL;
ctx->Driver.ReadCI32Pixels =NULL;
projects / mesa.git / blobdiff