diff options
| -rw-r--r-- | src/mesa/swrast/s_copypix.c | 60 |
1 files changed, 36 insertions, 24 deletions
diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c index 31fffff627..3a8d05b7f3 100644 --- a/src/mesa/swrast/s_copypix.c +++ b/src/mesa/swrast/s_copypix.c @@ -1,8 +1,8 @@ -/* $Id: s_copypix.c,v 1.42 2002/10/30 20:16:43 brianp Exp $ */ +/* $Id: s_copypix.c,v 1.43 2002/12/05 04:46:54 brianp Exp $ */ /* * Mesa 3-D graphics library - * Version: 5.0 + * Version: 5.1 * * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. * @@ -26,13 +26,10 @@ #include "glheader.h" -#include "colormac.h" #include "context.h" #include "convolve.h" -#include "feedback.h" #include "macros.h" #include "imports.h" -#include "mmath.h" #include "pixel.h" #include "s_context.h" @@ -263,7 +260,7 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy, span.end = width; _mesa_write_zoomed_rgba_span(ctx, &span, (CONST GLchan (*)[4])span.array->rgba, - desty); + desty, 0); } else { span.x = destx; @@ -370,6 +367,7 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy, /* Get source pixels */ if (overlapping) { /* get from buffered image */ + ASSERT(width < MAX_WIDTH); MEMCPY(span.array->rgba, p, width * sizeof(GLchan) * 4); p += width * 4; } @@ -377,6 +375,7 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy, /* get from framebuffer */ if (changeBuffer) _swrast_use_read_buffer(ctx); + ASSERT(width < MAX_WIDTH); _mesa_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, sy, span.array->rgba ); if (changeBuffer) @@ -468,9 +467,10 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy, _swrast_pixel_texture(ctx, &span); } + /* 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 ); + (const GLchan (*)[4])span.array->rgba, NULL ); } else if (zoom) { span.x = destx; @@ -478,7 +478,7 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy, span.end = width; _mesa_write_zoomed_rgba_span(ctx, &span, (CONST GLchan (*)[4]) span.array->rgba, - desty); + desty, 0); } else { span.x = destx; @@ -493,9 +493,10 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy, } -static void copy_ci_pixels( GLcontext *ctx, - GLint srcx, GLint srcy, GLint width, GLint height, - GLint destx, GLint desty ) +static void +copy_ci_pixels( GLcontext *ctx, GLint srcx, GLint srcy, + GLint width, GLint height, + GLint destx, GLint desty ) { GLuint *tmpImage,*p; GLint sy, dy, stepy; @@ -563,6 +564,7 @@ static void copy_ci_pixels( GLcontext *ctx, } for (j = 0; j < height; j++, sy += stepy, dy += stepy) { + /* Get color indexes */ if (overlapping) { MEMCPY(span.array->index, p, width * sizeof(GLuint)); p += width; @@ -576,6 +578,7 @@ static void copy_ci_pixels( GLcontext *ctx, _swrast_use_draw_buffer(ctx); } + /* Apply shift, offset, look-up table */ if (shift_or_offset) { _mesa_shift_and_offset_ci( ctx, width, span.array->index ); } @@ -583,11 +586,12 @@ static void copy_ci_pixels( GLcontext *ctx, _mesa_map_ci( ctx, width, span.array->index ); } + /* write color indexes */ span.x = destx; span.y = dy; span.end = width; if (zoom) - _mesa_write_zoomed_index_span(ctx, &span, desty); + _mesa_write_zoomed_index_span(ctx, &span, desty, 0); else _mesa_write_index_span(ctx, &span); } @@ -601,11 +605,11 @@ static void copy_ci_pixels( GLcontext *ctx, /* * TODO: Optimize!!!! */ -static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy, - GLint width, GLint height, - GLint destx, GLint desty ) +static void +copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy, + GLint width, GLint height, + GLint destx, GLint desty ) { - GLfloat depth[MAX_WIDTH]; GLfloat *p, *tmpImage; GLint sy, dy, stepy; GLint i, j; @@ -661,6 +665,9 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy, } for (j = 0; j < height; j++, sy += stepy, dy += stepy) { + GLfloat depth[MAX_WIDTH]; + + /* get depth values */ if (overlapping) { MEMCPY(depth, p, width * sizeof(GLfloat)); p += width; @@ -669,25 +676,26 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy, _mesa_read_depth_span_float(ctx, 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); } + /* write depth values */ span.x = destx; span.y = dy; span.end = width; if (ctx->Visual.rgbMode) { if (zoom) _mesa_write_zoomed_rgba_span( ctx, &span, - (const GLchan (*)[4])span.array->rgba, - desty ); + (const GLchan (*)[4])span.array->rgba, desty, 0 ); else _mesa_write_rgba_span(ctx, &span); } else { if (zoom) - _mesa_write_zoomed_index_span( ctx, &span, desty ); + _mesa_write_zoomed_index_span( ctx, &span, desty, 0 ); else _mesa_write_index_span(ctx, &span); } @@ -699,9 +707,10 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy, -static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy, - GLint width, GLint height, - GLint destx, GLint desty ) +static void +copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy, + GLint width, GLint height, + GLint destx, GLint desty ) { GLint sy, dy, stepy; GLint j; @@ -754,6 +763,7 @@ static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy, for (j = 0; j < height; j++, sy += stepy, dy += stepy) { GLstencil stencil[MAX_WIDTH]; + /* Get stencil values */ if (overlapping) { MEMCPY(stencil, p, width * sizeof(GLstencil)); p += width; @@ -762,6 +772,7 @@ static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy, _mesa_read_stencil_span( ctx, width, srcx, sy, stencil ); } + /* Apply shift, offset, look-up table */ if (shift_or_offset) { _mesa_shift_and_offset_stencil( ctx, width, stencil ); } @@ -769,8 +780,10 @@ static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy, _mesa_map_stencil( ctx, width, stencil ); } + /* Write stencil values */ if (zoom) { - _mesa_write_zoomed_stencil_span( ctx, width, destx, dy, stencil, desty ); + _mesa_write_zoomed_stencil_span( ctx, width, destx, dy, + stencil, desty, 0 ); } else { _mesa_write_stencil_span( ctx, width, destx, dy, stencil ); @@ -783,7 +796,6 @@ static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy, - void _swrast_CopyPixels( GLcontext *ctx, GLint srcx, GLint srcy, GLsizei width, GLsizei height, |