From e6432710d8a586386b3c7025e845cf4f80830da3 Mon Sep 17 00:00:00 2001 From: marha Date: Wed, 25 Jan 2012 08:24:51 +0100 Subject: mesa git update 25 jan 2012 --- mesalib/src/mesa/swrast/s_span.c | 291 +++++++++++++++++++++++++-------------- 1 file changed, 184 insertions(+), 107 deletions(-) (limited to 'mesalib/src/mesa/swrast/s_span.c') diff --git a/mesalib/src/mesa/swrast/s_span.c b/mesalib/src/mesa/swrast/s_span.c index e89930353..7ab60b1e5 100644 --- a/mesalib/src/mesa/swrast/s_span.c +++ b/mesalib/src/mesa/swrast/s_span.c @@ -33,6 +33,8 @@ #include "main/glheader.h" #include "main/colormac.h" +#include "main/format_pack.h" +#include "main/format_unpack.h" #include "main/macros.h" #include "main/imports.h" #include "main/image.h" @@ -50,6 +52,7 @@ #include "s_stencil.h" #include "s_texcombine.h" +#include /** * Set default fragment attributes for the span using the @@ -968,7 +971,25 @@ convert_color_type(SWspan *span, GLenum newType, GLuint output) static inline void shade_texture_span(struct gl_context *ctx, SWspan *span) { - if (ctx->FragmentProgram._Current || + /* This is a hack to work around drivers such as i965 that: + * + * - Set _MaintainTexEnvProgram to generate GLSL IR for + * fixed-function fragment processing. + * - Don't call _mesa_ir_link_shader to generate Mesa IR from + * the GLSL IR. + * - May use swrast to handle glDrawPixels. + * + * Since _mesa_ir_link_shader is never called, there is no Mesa IR + * to execute. Instead do regular fixed-function processing. + * + * It is also worth noting that the software fixed-function path is + * much faster than the software shader path. + */ + const bool use_fragment_program = + ctx->FragmentProgram._Current + && ctx->FragmentProgram._Current != ctx->FragmentProgram._TexEnvProgram; + + if (use_fragment_program || ctx->ATIFragmentShader._Enabled) { /* programmable shading */ if (span->primitive == GL_BITMAP && span->array->ChanType != GL_FLOAT) { @@ -997,7 +1018,7 @@ shade_texture_span(struct gl_context *ctx, SWspan *span) interpolate_wpos(ctx, span); /* Run fragment program/shader now */ - if (ctx->FragmentProgram._Current) { + if (use_fragment_program) { _swrast_exec_fragment_program(ctx, span); } else { @@ -1024,6 +1045,94 @@ shade_texture_span(struct gl_context *ctx, SWspan *span) } +/** Put colors at x/y locations into a renderbuffer */ +static void +put_values(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLenum datatype, + GLuint count, const GLint x[], const GLint y[], + const void *values, const GLubyte *mask) +{ + gl_pack_ubyte_rgba_func pack_ubyte; + gl_pack_float_rgba_func pack_float; + GLuint i; + + if (datatype == GL_UNSIGNED_BYTE) + pack_ubyte = _mesa_get_pack_ubyte_rgba_function(rb->Format); + else + pack_float = _mesa_get_pack_float_rgba_function(rb->Format); + + for (i = 0; i < count; i++) { + if (mask[i]) { + GLubyte *dst = _swrast_pixel_address(rb, x[i], y[i]); + + if (datatype == GL_UNSIGNED_BYTE) { + pack_ubyte((const GLubyte *) values + 4 * i, dst); + } + else { + assert(datatype == GL_FLOAT); + pack_float((const GLfloat *) values + 4 * i, dst); + } + } + } +} + + +/** Put row of colors into renderbuffer */ +void +_swrast_put_row(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLenum datatype, + GLuint count, GLint x, GLint y, + const void *values, const GLubyte *mask) +{ + GLubyte *dst = _swrast_pixel_address(rb, x, y); + + if (!mask) { + if (datatype == GL_UNSIGNED_BYTE) { + _mesa_pack_ubyte_rgba_row(rb->Format, count, + (const GLubyte (*)[4]) values, dst); + } + else { + assert(datatype == GL_FLOAT); + _mesa_pack_float_rgba_row(rb->Format, count, + (const GLfloat (*)[4]) values, dst); + } + } + else { + const GLuint bpp = _mesa_get_format_bytes(rb->Format); + GLuint i, runLen, runStart; + /* We can't pass a 'mask' array to the _mesa_pack_rgba_row() functions + * so look for runs where mask=1... + */ + runLen = runStart = 0; + for (i = 0; i < count; i++) { + if (mask[i]) { + if (runLen == 0) + runStart = i; + runLen++; + } + + if (!mask[i] || i == count - 1) { + /* might be the end of a run of pixels */ + if (runLen > 0) { + if (datatype == GL_UNSIGNED_BYTE) { + _mesa_pack_ubyte_rgba_row(rb->Format, runLen, + (const GLubyte (*)[4]) values + runStart, + dst + runStart * bpp); + } + else { + assert(datatype == GL_FLOAT); + _mesa_pack_float_rgba_row(rb->Format, runLen, + (const GLfloat (*)[4]) values + runStart, + dst + runStart * bpp); + } + runLen = 0; + } + } + } + } +} + + /** * Apply all the per-fragment operations to a span. @@ -1227,23 +1336,13 @@ _swrast_write_rgba_span( struct gl_context *ctx, SWspan *span) if (rb) { GLchan rgbaSave[MAX_WIDTH][4]; - const GLuint fragOutput = multiFragOutputs ? buf : 0; - /* set span->array->rgba to colors for render buffer's datatype */ - if (rb->DataType != span->array->ChanType || fragOutput > 0) { - convert_color_type(span, rb->DataType, fragOutput); + if (span->array->ChanType == GL_UNSIGNED_BYTE) { + span->array->rgba = span->array->rgba8; } else { - if (rb->DataType == GL_UNSIGNED_BYTE) { - span->array->rgba = span->array->rgba8; - } - else if (rb->DataType == GL_UNSIGNED_SHORT) { - span->array->rgba = (void *) span->array->rgba16; - } - else { - span->array->rgba = (void *) - span->array->attribs[FRAG_ATTRIB_COL0]; - } + span->array->rgba = (void *) + span->array->attribs[FRAG_ATTRIB_COL0]; } if (!multiFragOutputs && numBuffers > 1) { @@ -1271,17 +1370,18 @@ _swrast_write_rgba_span( struct gl_context *ctx, SWspan *span) if (span->arrayMask & SPAN_XY) { /* array of pixel coords */ - ASSERT(rb->PutValues); - rb->PutValues(ctx, rb, span->end, - span->array->x, span->array->y, - span->array->rgba, span->array->mask); + put_values(ctx, rb, + span->array->ChanType, span->end, + span->array->x, span->array->y, + span->array->rgba, span->array->mask); } else { /* horizontal run of pixels */ - ASSERT(rb->PutRow); - rb->PutRow(ctx, rb, span->end, span->x, span->y, - span->array->rgba, - span->writeAll ? NULL: span->array->mask); + _swrast_put_row(ctx, rb, + span->array->ChanType, + span->end, span->x, span->y, + span->array->rgba, + span->writeAll ? NULL: span->array->mask); } if (!multiFragOutputs && numBuffers > 1) { @@ -1305,16 +1405,17 @@ end: /** - * Read RGBA pixels from a renderbuffer. Clipping will be done to prevent - * reading ouside the buffer's boundaries. - * \param dstType datatype for returned colors + * Read float RGBA pixels from a renderbuffer. Clipping will be done to + * prevent reading ouside the buffer's boundaries. * \param rgba the returned colors */ void _swrast_read_rgba_span( struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, GLenum dstType, + GLuint n, GLint x, GLint y, GLvoid *rgba) { + struct swrast_renderbuffer *srb = swrast_renderbuffer(rb); + GLenum dstType = GL_FLOAT; const GLint bufWidth = (GLint) rb->Width; const GLint bufHeight = (GLint) rb->Height; @@ -1325,6 +1426,8 @@ _swrast_read_rgba_span( struct gl_context *ctx, struct gl_renderbuffer *rb, } else { GLint skip, length; + GLubyte *src; + if (x < 0) { /* left edge clipping */ skip = -x; @@ -1353,7 +1456,6 @@ _swrast_read_rgba_span( struct gl_context *ctx, struct gl_renderbuffer *rb, } ASSERT(rb); - ASSERT(rb->GetRow); ASSERT(rb->_BaseFormat == GL_RGBA || rb->_BaseFormat == GL_RGB || rb->_BaseFormat == GL_RG || @@ -1363,70 +1465,69 @@ _swrast_read_rgba_span( struct gl_context *ctx, struct gl_renderbuffer *rb, rb->_BaseFormat == GL_LUMINANCE_ALPHA || rb->_BaseFormat == GL_ALPHA); - if (rb->DataType == dstType) { - rb->GetRow(ctx, rb, length, x + skip, y, - (GLubyte *) rgba + skip * RGBA_PIXEL_SIZE(rb->DataType)); + assert(srb->Map); + + src = _swrast_pixel_address(rb, x + skip, y); + + if (dstType == GL_UNSIGNED_BYTE) { + _mesa_unpack_ubyte_rgba_row(rb->Format, length, src, + (GLubyte (*)[4]) rgba + skip); + } + else if (dstType == GL_FLOAT) { + _mesa_unpack_rgba_row(rb->Format, length, src, + (GLfloat (*)[4]) rgba + skip); } else { - GLuint temp[MAX_WIDTH * 4]; - rb->GetRow(ctx, rb, length, x + skip, y, temp); - _mesa_convert_colors(rb->DataType, temp, - dstType, (GLubyte *) rgba + skip * RGBA_PIXEL_SIZE(dstType), - length, NULL); + _mesa_problem(ctx, "unexpected type in _swrast_read_rgba_span()"); } } } /** - * Wrapper for gl_renderbuffer::GetValues() which does clipping to avoid - * reading values outside the buffer bounds. - * We can use this for reading any format/type of renderbuffer. - * \param valueSize is the size in bytes of each value (pixel) put into the - * values array. + * Get colors at x/y positions with clipping. + * \param type type of values to return */ -void -_swrast_get_values(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - void *values, GLuint valueSize) +static void +get_values(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, const GLint x[], const GLint y[], + void *values, GLenum type) { - GLuint i, inCount = 0, inStart = 0; + GLuint i; for (i = 0; i < count; i++) { if (x[i] >= 0 && y[i] >= 0 && x[i] < (GLint) rb->Width && y[i] < (GLint) rb->Height) { /* inside */ - if (inCount == 0) - inStart = i; - inCount++; - } - else { - if (inCount > 0) { - /* read [inStart, inStart + inCount) */ - rb->GetValues(ctx, rb, inCount, x + inStart, y + inStart, - (GLubyte *) values + inStart * valueSize); - inCount = 0; + const GLubyte *src = _swrast_pixel_address(rb, x[i], y[i]); + + if (type == GL_UNSIGNED_BYTE) { + _mesa_unpack_ubyte_rgba_row(rb->Format, 1, src, + (GLubyte (*)[4]) values + i); + } + else if (type == GL_FLOAT) { + _mesa_unpack_rgba_row(rb->Format, 1, src, + (GLfloat (*)[4]) values + i); + } + else { + _mesa_problem(ctx, "unexpected type in get_values()"); } } } - if (inCount > 0) { - /* read last values */ - rb->GetValues(ctx, rb, inCount, x + inStart, y + inStart, - (GLubyte *) values + inStart * valueSize); - } } /** - * Wrapper for gl_renderbuffer::PutRow() which does clipping. - * \param valueSize size of each value (pixel) in bytes + * Get row of colors with clipping. + * \param type type of values to return */ -void -_swrast_put_row(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, - const GLvoid *values, GLuint valueSize) +static void +get_row(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, + GLvoid *values, GLenum type) { GLint skip = 0; + GLubyte *src; if (y < 0 || y >= (GLint) rb->Height) return; /* above or below */ @@ -1434,7 +1535,7 @@ _swrast_put_row(struct gl_context *ctx, struct gl_renderbuffer *rb, if (x + (GLint) count <= 0 || x >= (GLint) rb->Width) return; /* entirely left or right */ - if ((GLint) (x + count) > (GLint) rb->Width) { + if (x + count > rb->Width) { /* right clip */ GLint clip = x + count - rb->Width; count -= clip; @@ -1447,42 +1548,19 @@ _swrast_put_row(struct gl_context *ctx, struct gl_renderbuffer *rb, count -= skip; } - rb->PutRow(ctx, rb, count, x, y, - (const GLubyte *) values + skip * valueSize, NULL); -} + src = _swrast_pixel_address(rb, x, y); - -/** - * Wrapper for gl_renderbuffer::GetRow() which does clipping. - * \param valueSize size of each value (pixel) in bytes - */ -void -_swrast_get_row(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, - GLvoid *values, GLuint valueSize) -{ - GLint skip = 0; - - if (y < 0 || y >= (GLint) rb->Height) - return; /* above or below */ - - if (x + (GLint) count <= 0 || x >= (GLint) rb->Width) - return; /* entirely left or right */ - - if (x + count > rb->Width) { - /* right clip */ - GLint clip = x + count - rb->Width; - count -= clip; + if (type == GL_UNSIGNED_BYTE) { + _mesa_unpack_ubyte_rgba_row(rb->Format, count, src, + (GLubyte (*)[4]) values + skip); } - - if (x < 0) { - /* left clip */ - skip = -x; - x = 0; - count -= skip; + else if (type == GL_FLOAT) { + _mesa_unpack_rgba_row(rb->Format, count, src, + (GLfloat (*)[4]) values + skip); + } + else { + _mesa_problem(ctx, "unexpected type in get_row()"); } - - rb->GetRow(ctx, rb, count, x, y, (GLubyte *) values + skip * valueSize); } @@ -1495,7 +1573,6 @@ void * _swrast_get_dest_rgba(struct gl_context *ctx, struct gl_renderbuffer *rb, SWspan *span) { - const GLuint pixelSize = RGBA_PIXEL_SIZE(span->array->ChanType); void *rbPixels; /* Point rbPixels to a temporary space */ @@ -1503,12 +1580,12 @@ _swrast_get_dest_rgba(struct gl_context *ctx, struct gl_renderbuffer *rb, /* Get destination values from renderbuffer */ if (span->arrayMask & SPAN_XY) { - _swrast_get_values(ctx, rb, span->end, span->array->x, span->array->y, - rbPixels, pixelSize); + get_values(ctx, rb, span->end, span->array->x, span->array->y, + rbPixels, span->array->ChanType); } else { - _swrast_get_row(ctx, rb, span->end, span->x, span->y, - rbPixels, pixelSize); + get_row(ctx, rb, span->end, span->x, span->y, + rbPixels, span->array->ChanType); } return rbPixels; -- cgit v1.2.3