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Diffstat (limited to 'src/mesa/swrast/s_bitmap.c')
| -rw-r--r-- | src/mesa/swrast/s_bitmap.c | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/src/mesa/swrast/s_bitmap.c b/src/mesa/swrast/s_bitmap.c deleted file mode 100644 index 324daea3681..00000000000 --- a/src/mesa/swrast/s_bitmap.c +++ /dev/null @@ -1,223 +0,0 @@ -/* - * Mesa 3-D graphics library - * - * 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"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of 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 - * 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. - */ - -/** - * \file swrast/s_bitmap.c - * \brief glBitmap rendering. - * \author Brian Paul - */ - -#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( struct gl_context *ctx, GLint px, GLint py, - GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte *bitmap ) -{ - GLint row, col; - GLuint count = 0; - SWspan span; - - assert(ctx->RenderMode == GL_RENDER); - - if (!_mesa_check_conditional_render(ctx)) - return; /* don't draw */ - - 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, GL_BITMAP); - span.end = width; - span.arrayMask = SPAN_XY; - _swrast_span_default_attribs(ctx, &span); - - 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.array->x[count] = px + col; - span.array->y[count] = py + row; - count++; - } - if (mask == 128U) { - src++; - mask = 1U; - } - else { - mask = mask << 1; - } - } - - /* get ready for next row */ - if (mask != 1) - src++; - } - else { - /* Msb first */ - GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); - for (col = 0; col < width; col++) { - if (*src & mask) { - span.array->x[count] = px + col; - span.array->y[count] = py + row; - count++; - } - if (mask == 1U) { - src++; - mask = 128U; - } - else { - mask = mask >> 1; - } - } - - /* get ready for next row */ - if (mask != 128) - src++; - } - - if (count + width >= SWRAST_MAX_WIDTH || row + 1 == height) { - /* flush the span */ - span.end = count; - _swrast_write_rgba_span(ctx, &span); - span.end = 0; - count = 0; - } - } - - 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 fragments to - * draw or skip. - */ -void -_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; - SWspan span; - - assert(ctx->RenderMode == GL_RENDER); - assert(bitmap); - - swrast_render_start(ctx); - - if (SWRAST_CONTEXT(ctx)->NewState) - _swrast_validate_derived( ctx ); - - INIT_SPAN(span, GL_BITMAP); - span.end = width; - span.arrayMask = SPAN_MASK; - _swrast_span_default_attribs(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_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.array->mask[col] = (*src & mask) ? GL_TRUE : GL_FALSE; - if (mask == 128U) { - src++; - mask = 1U; - } - else { - mask = mask << 1; - } - } - - _swrast_write_rgba_span(ctx, &span); - - /* get ready for next row */ - if (mask != 1) - src++; - } - else { - /* Msb first */ - GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); - for (col=0; col<width; col++) { - span.array->mask[col] = (*src & mask) ? GL_TRUE : GL_FALSE; - if (mask == 1U) { - src++; - mask = 128U; - } - else { - mask = mask >> 1; - } - } - - _swrast_write_rgba_span(ctx, &span); - - /* get ready for next row */ - if (mask != 128) - src++; - } - } - - swrast_render_finish(ctx); -} -#endif |