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path: root/src/mesa/swrast/s_copypix.c
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Diffstat (limited to 'src/mesa/swrast/s_copypix.c')
-rw-r--r--src/mesa/swrast/s_copypix.c82
1 files changed, 63 insertions, 19 deletions
diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c
index 7454cfd2d2..3d6d91de51 100644
--- a/src/mesa/swrast/s_copypix.c
+++ b/src/mesa/swrast/s_copypix.c
@@ -131,6 +131,7 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
GLint width, GLint height, GLint destx, GLint desty)
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ struct gl_renderbuffer *drawRb = NULL;
GLboolean quick_draw;
GLint row;
GLboolean changeBuffer;
@@ -152,6 +153,7 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
&& destx >= 0
&& destx + width <= (GLint) ctx->DrawBuffer->Width) {
quick_draw = GL_TRUE;
+ drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0][0];
}
else {
quick_draw = GL_FALSE;
@@ -185,8 +187,8 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
for (row = 0; row < height; row++) {
GLchan rgba[MAX_WIDTH][4];
/* Read GLchan and convert to GLfloat */
- _swrast_read_rgba_span(ctx, ctx->ReadBuffer, width, srcx,
- srcy + row, rgba);
+ _swrast_read_rgba_span(ctx, ctx->ReadBuffer->_ColorReadBuffer,
+ width, srcx, srcy + row, rgba);
chan_span_to_float(width, (CONST GLchan (*)[4]) rgba,
(GLfloat (*)[4]) dest);
dest += 4 * width;
@@ -240,8 +242,14 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
dy = desty + row;
if (quick_draw && dy >= 0 && dy < (GLint) ctx->DrawBuffer->Height) {
- (*swrast->Driver.WriteRGBASpan)( ctx, width, destx, dy,
- (const GLchan (*)[4])span.array->rgba, NULL );
+#if OLD_RENDERBUFFER
+ if (swrast->Driver.WriteRGBASpan)
+ swrast->Driver.WriteRGBASpan(ctx, drawRb, width, destx, dy,
+ (const GLchan (*)[4]) span.array->rgba, NULL);
+ else
+#endif
+ drawRb->PutRow(ctx, drawRb, width, destx, dy,
+ span.array->rgba, NULL);
}
else if (zoom) {
span.x = destx;
@@ -271,6 +279,7 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
GLint width, GLint height, GLint destx, GLint desty)
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ struct gl_renderbuffer *drawRb;
GLchan *tmpImage,*p;
GLboolean quick_draw;
GLint sy, dy, stepy, j;
@@ -280,6 +289,11 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
const GLuint transferOps = ctx->_ImageTransferState;
struct sw_span span;
+ if (!ctx->ReadBuffer->_ColorReadBuffer) {
+ /* no readbuffer - OK */
+ return;
+ }
+
INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_RGBA);
if (ctx->Pixel.Convolution2DEnabled || ctx->Pixel.Separable2DEnabled) {
@@ -319,9 +333,11 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
&& destx >= 0
&& destx + width <= (GLint) ctx->DrawBuffer->Width) {
quick_draw = GL_TRUE;
+ drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0][0];
}
else {
quick_draw = GL_FALSE;
+ drawRb = NULL;
}
/* If read and draw buffer are different we must do buffer switching */
@@ -341,8 +357,8 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
/* read the source image */
p = tmpImage;
for (j = 0; j < height; j++, ssy += stepy) {
- _swrast_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, ssy,
- (GLchan (*)[4]) p );
+ _swrast_read_rgba_span( ctx, ctx->ReadBuffer->_ColorReadBuffer,
+ width, srcx, ssy, (GLchan (*)[4]) p );
p += width * 4;
}
p = tmpImage;
@@ -370,8 +386,8 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
if (changeBuffer)
_swrast_use_read_buffer(ctx);
ASSERT(width < MAX_WIDTH);
- _swrast_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, sy,
- span.array->rgba );
+ _swrast_read_rgba_span( ctx, ctx->ReadBuffer->_ColorReadBuffer,
+ width, srcx, sy, span.array->rgba );
if (changeBuffer)
_swrast_use_draw_buffer(ctx);
}
@@ -397,8 +413,14 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
/* Write color span */
if (quick_draw && dy >= 0 && dy < (GLint) ctx->DrawBuffer->Height) {
- (*swrast->Driver.WriteRGBASpan)( ctx, width, destx, dy,
- (const GLchan (*)[4])span.array->rgba, NULL );
+#if OLD_RENDERBUFFER
+ if (swrast->Driver.WriteRGBASpan)
+ swrast->Driver.WriteRGBASpan(ctx, drawRb, width, destx, dy,
+ (const GLchan (*)[4])span.array->rgba, NULL);
+ else
+#endif
+ drawRb->PutRow(ctx, drawRb, width, destx, dy, span.array->rgba, NULL);
+
}
else if (zoom) {
span.x = destx;
@@ -435,6 +457,11 @@ copy_ci_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
GLint overlapping;
struct sw_span span;
+ if (!ctx->ReadBuffer->_ColorReadBuffer) {
+ /* no readbuffer - OK */
+ return;
+ }
+
INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_INDEX);
/* Determine if copy should be bottom-to-top or top-to-bottom */
@@ -481,7 +508,8 @@ copy_ci_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
/* read the image */
p = tmpImage;
for (j = 0; j < height; j++, ssy += stepy) {
- _swrast_read_index_span( ctx, ctx->ReadBuffer, width, srcx, ssy, p );
+ _swrast_read_index_span( ctx, ctx->ReadBuffer->_ColorReadBuffer,
+ width, srcx, ssy, p );
p += width;
}
p = tmpImage;
@@ -505,8 +533,8 @@ copy_ci_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
else {
if (changeBuffer)
_swrast_use_read_buffer(ctx);
- _swrast_read_index_span( ctx, ctx->ReadBuffer, width, srcx, sy,
- span.array->index );
+ _swrast_read_index_span( ctx, ctx->ReadBuffer->_ColorReadBuffer,
+ width, srcx, sy, span.array->index );
if (changeBuffer)
_swrast_use_draw_buffer(ctx);
}
@@ -543,6 +571,9 @@ copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
GLint width, GLint height,
GLint destx, GLint desty )
{
+ const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF;
+ struct gl_renderbuffer *readRb
+ = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
GLfloat *p, *tmpImage;
GLint sy, dy, stepy;
GLint i, j;
@@ -550,6 +581,11 @@ copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
GLint overlapping;
struct sw_span span;
+ if (!readRb) {
+ /* no readbuffer - OK */
+ return;
+ }
+
INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_Z);
if (!ctx->Visual.depthBits) {
@@ -592,7 +628,7 @@ copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
}
p = tmpImage;
for (j = 0; j < height; j++, ssy += stepy) {
- _swrast_read_depth_span_float(ctx, width, srcx, ssy, p);
+ _swrast_read_depth_span_float(ctx, readRb, width, srcx, ssy, p);
p += width;
}
p = tmpImage;
@@ -604,20 +640,21 @@ copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
for (j = 0; j < height; j++, sy += stepy, dy += stepy) {
GLfloat depth[MAX_WIDTH];
-
+ float sum = 0;
/* get depth values */
if (overlapping) {
MEMCPY(depth, p, width * sizeof(GLfloat));
p += width;
}
else {
- _swrast_read_depth_span_float(ctx, width, srcx, sy, depth);
+ _swrast_read_depth_span_float(ctx, readRb, width, srcx, sy, depth);
}
/* apply scale and bias */
for (i = 0; i < width; i++) {
GLfloat d = depth[i] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias;
- span.array->z[i] = (GLdepth) (CLAMP(d, 0.0F, 1.0F) * ctx->DepthMax);
+ sum += d;
+ span.array->z[i] = (GLdepth) (CLAMP(d, 0.0F, 1.0F) * depthMax);
}
/* write depth values */
@@ -650,6 +687,8 @@ copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
GLint width, GLint height,
GLint destx, GLint desty )
{
+ struct gl_renderbuffer *rb
+ = ctx->ReadBuffer->Attachment[BUFFER_STENCIL].Renderbuffer;
GLint sy, dy, stepy;
GLint j;
GLstencil *p, *tmpImage;
@@ -662,6 +701,11 @@ copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
return;
}
+ if (!rb) {
+ /* no readbuffer - OK */
+ return;
+ }
+
/* Determine if copy should be bottom-to-top or top-to-bottom */
if (srcy < desty) {
/* top-down max-to-min */
@@ -693,7 +737,7 @@ copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
}
p = tmpImage;
for (j = 0; j < height; j++, ssy += stepy) {
- _swrast_read_stencil_span( ctx, width, srcx, ssy, p );
+ _swrast_read_stencil_span( ctx, rb, width, srcx, ssy, p );
p += width;
}
p = tmpImage;
@@ -712,7 +756,7 @@ copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
p += width;
}
else {
- _swrast_read_stencil_span( ctx, width, srcx, sy, stencil );
+ _swrast_read_stencil_span( ctx, rb, width, srcx, sy, stencil );
}
/* Apply shift, offset, look-up table */
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-20 17:17:56 +0000