-/* $Id: s_bitmap.c,v 1.16 2002/02/17 17:30:23 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 4.1
*
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \author Brian Paul
*/
-#include "glheader.h"
-#include "image.h"
-#include "macros.h"
-#include "mmath.h"
-#include "pixel.h"
+#include "main/glheader.h"
+#include "main/bufferobj.h"
+#include "main/condrender.h"
+#include "main/image.h"
+#include "main/macros.h"
+#include "main/pbo.h"
#include "s_context.h"
#include "s_span.h"
-/*
+/**
* Render a bitmap.
+ * Called via ctx->Driver.Bitmap()
+ * All parameter error checking will have been done before this is called.
*/
void
-_swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
+_swrast_Bitmap( struct gl_context *ctx, GLint px, GLint py,
GLsizei width, GLsizei height,
const struct gl_pixelstore_attrib *unpack,
const GLubyte *bitmap )
{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
GLint row, col;
GLuint count = 0;
- struct sw_span span;
+ SWspan span;
+
+ assert(ctx->RenderMode == GL_RENDER);
- ASSERT(ctx->RenderMode == GL_RENDER);
- ASSERT(bitmap);
+ if (!_mesa_check_conditional_render(ctx))
+ return; /* don't draw */
- RENDER_START(swrast,ctx);
+ bitmap = (const GLubyte *) _mesa_map_pbo_source(ctx, unpack, bitmap);
+ if (!bitmap)
+ return;
+
+ swrast_render_start(ctx);
if (SWRAST_CONTEXT(ctx)->NewState)
_swrast_validate_derived( ctx );
- INIT_SPAN(span);
- span.arrayMask |= SPAN_XY;
+ INIT_SPAN(span, GL_BITMAP);
span.end = width;
- if (ctx->Visual.rgbMode) {
- span.interpMask |= SPAN_RGBA;
- span.red = FloatToFixed(ctx->Current.RasterColor[0] * CHAN_MAXF);
- span.green = FloatToFixed(ctx->Current.RasterColor[1] * CHAN_MAXF);
- span.blue = FloatToFixed(ctx->Current.RasterColor[2] * CHAN_MAXF);
- span.alpha = FloatToFixed(ctx->Current.RasterColor[3] * CHAN_MAXF);
- span.redStep = span.greenStep = span.blueStep = span.alphaStep = 0;
- }
- else {
- span.interpMask |= SPAN_INDEX;
- span.index = ChanToFixed(ctx->Current.RasterIndex);
- span.indexStep = 0;
- }
-
- if (ctx->Depth.Test)
- _mesa_span_default_z(ctx, &span);
- if (ctx->Fog.Enabled)
- _mesa_span_default_fog(ctx, &span);
+ span.arrayMask = SPAN_XY;
+ _swrast_span_default_attribs(ctx, &span);
- for (row = 0; row < height; row++, span.y++) {
- const GLubyte *src = (const GLubyte *) _mesa_image_address( unpack,
- bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, 0, row, 0 );
+ for (row = 0; row < height; row++) {
+ const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack,
+ bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0);
if (unpack->LsbFirst) {
/* Lsb first */
GLubyte mask = 1U << (unpack->SkipPixels & 0x7);
for (col = 0; col < width; col++) {
if (*src & mask) {
- span.xArray[count] = px + col;
- span.yArray[count] = py + row;
+ span.array->x[count] = px + col;
+ span.array->y[count] = py + row;
count++;
}
if (mask == 128U) {
GLubyte mask = 128U >> (unpack->SkipPixels & 0x7);
for (col = 0; col < width; col++) {
if (*src & mask) {
- span.xArray[count] = px + col;
- span.yArray[count] = py + row;
+ span.array->x[count] = px + col;
+ span.array->y[count] = py + row;
count++;
}
if (mask == 1U) {
src++;
}
- if (count + width >= MAX_WIDTH || row + 1 == height) {
+ if (count + width >= SWRAST_MAX_WIDTH || row + 1 == height) {
/* flush the span */
span.end = count;
- if (ctx->Visual.rgbMode)
- _mesa_write_rgba_span(ctx, &span, GL_BITMAP);
- else
- _mesa_write_index_span(ctx, &span, GL_BITMAP);
+ _swrast_write_rgba_span(ctx, &span);
span.end = 0;
count = 0;
}
}
- RENDER_FINISH(swrast,ctx);
+ swrast_render_finish(ctx);
+
+ _mesa_unmap_pbo_source(ctx, unpack);
}
#if 0
/*
* XXX this is another way to implement Bitmap. Use horizontal runs of
- * fragments, initializing the mask array to indicate which fragmens to
+ * fragments, initializing the mask array to indicate which fragments to
* draw or skip.
*/
-
void
-_swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
+_swrast_Bitmap( struct gl_context *ctx, GLint px, GLint py,
GLsizei width, GLsizei height,
const struct gl_pixelstore_attrib *unpack,
const GLubyte *bitmap )
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
GLint row, col;
- struct sw_span span;
+ SWspan span;
- ASSERT(ctx->RenderMode == GL_RENDER);
- ASSERT(bitmap);
+ assert(ctx->RenderMode == GL_RENDER);
+ assert(bitmap);
- RENDER_START(swrast,ctx);
+ swrast_render_start(ctx);
if (SWRAST_CONTEXT(ctx)->NewState)
_swrast_validate_derived( ctx );
- INIT_SPAN(span);
- span.arrayMask |= SPAN_MASK; /* we'll init span.mask[] */
- span.x = px;
- span.y = py;
+ INIT_SPAN(span, GL_BITMAP);
span.end = width;
- if (ctx->Visual.rgbMode) {
- span.interpMask |= SPAN_RGBA;
- span.red = FloatToFixed(ctx->Current.RasterColor[0] * CHAN_MAXF);
- span.green = FloatToFixed(ctx->Current.RasterColor[1] * CHAN_MAXF);
- span.blue = FloatToFixed(ctx->Current.RasterColor[2] * CHAN_MAXF);
- span.alpha = FloatToFixed(ctx->Current.RasterColor[3] * CHAN_MAXF);
- span.redStep = span.greenStep = span.blueStep = span.alphaStep = 0;
- }
- else {
- span.interpMask |= SPAN_INDEX;
- span.index = ChanToFixed(ctx->Current.RasterIndex);
- span.indexStep = 0;
- }
+ span.arrayMask = SPAN_MASK;
+ _swrast_span_default_attribs(ctx, &span);
- if (ctx->Depth.Test)
- _mesa_span_default_z(ctx, &span);
- if (ctx->Fog.Enabled)
- _mesa_span_default_fog(ctx, &span);
+ /*span.arrayMask |= SPAN_MASK;*/ /* we'll init span.mask[] */
+ span.x = px;
+ span.y = py;
+ /*span.end = width;*/
for (row=0; row<height; row++, span.y++) {
- const GLubyte *src = (const GLubyte *) _mesa_image_address( unpack,
- bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, 0, row, 0 );
+ const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack,
+ bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0);
if (unpack->LsbFirst) {
/* Lsb first */
GLubyte mask = 1U << (unpack->SkipPixels & 0x7);
for (col=0; col<width; col++) {
- span.mask[col] = (*src & mask) ? GL_TRUE : GL_FALSE;
+ span.array->mask[col] = (*src & mask) ? GL_TRUE : GL_FALSE;
if (mask == 128U) {
src++;
mask = 1U;
}
}
- if (ctx->Visual.rgbMode)
- _mesa_write_rgba_span(ctx, &span, GL_BITMAP);
- else
- _mesa_write_index_span(ctx, &span, GL_BITMAP);
+ _swrast_write_rgba_span(ctx, &span);
/* get ready for next row */
if (mask != 1)
/* Msb first */
GLubyte mask = 128U >> (unpack->SkipPixels & 0x7);
for (col=0; col<width; col++) {
- span.mask[col] = (*src & mask) ? GL_TRUE : GL_FALSE;
+ span.array->mask[col] = (*src & mask) ? GL_TRUE : GL_FALSE;
if (mask == 1U) {
src++;
mask = 128U;
}
}
- if (ctx->Visual.rgbMode)
- _mesa_write_rgba_span(ctx, &span, GL_BITMAP);
- else
- _mesa_write_index_span(ctx, &span, GL_BITMAP);
+ _swrast_write_rgba_span(ctx, &span);
/* get ready for next row */
if (mask != 128)
}
}
- RENDER_FINISH(swrast,ctx);
+ swrast_render_finish(ctx);
}
#endif
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