X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fswrast%2Fs_span.c;h=ab7b82b19d952e4a17c2c75c17e5714620c3fc07;hb=71e64fc30b4f57bd93daf004bc04af7181391f4d;hp=f23272c2beec5271433972883341f1ee0a1382c2;hpb=3b8bc1f46758d4da9155419fcf558a493e729501;p=mesa.git diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c index f23272c2bee..ab7b82b19d9 100644 --- a/src/mesa/swrast/s_span.c +++ b/src/mesa/swrast/s_span.c @@ -30,12 +30,12 @@ * \author Brian Paul */ -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "macros.h" -#include "imports.h" -#include "image.h" +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/image.h" #include "s_atifragshader.h" #include "s_alpha.h" @@ -64,8 +64,11 @@ _swrast_span_default_attribs(GLcontext *ctx, SWspan *span) const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF; if (ctx->DrawBuffer->Visual.depthBits <= 16) span->z = FloatToFixed(ctx->Current.RasterPos[2] * depthMax + 0.5F); - else - span->z = (GLint) (ctx->Current.RasterPos[2] * depthMax + 0.5F); + else { + GLfloat tmpf = ctx->Current.RasterPos[2] * depthMax; + tmpf = MIN2(tmpf, depthMax); + span->z = (GLint)tmpf; + } span->zStep = 0; span->interpMask |= SPAN_Z; } @@ -789,6 +792,7 @@ _swrast_write_index_span( GLcontext *ctx, SWspan *span) const SWcontext *swrast = SWRAST_CONTEXT(ctx); const GLbitfield origInterpMask = span->interpMask; const GLbitfield origArrayMask = span->arrayMask; + struct gl_framebuffer *fb = ctx->DrawBuffer; ASSERT(span->end <= MAX_WIDTH); ASSERT(span->primitive == GL_POINT || span->primitive == GL_LINE || @@ -815,7 +819,7 @@ _swrast_write_index_span( GLcontext *ctx, SWspan *span) } /* Depth bounds test */ - if (ctx->Depth.BoundsTest && ctx->DrawBuffer->Visual.depthBits > 0) { + if (ctx->Depth.BoundsTest && fb->Visual.depthBits > 0) { if (!_swrast_depth_bounds_test(ctx, span)) { return; } @@ -827,10 +831,10 @@ _swrast_write_index_span( GLcontext *ctx, SWspan *span) GLuint i; for (i = 0; i < span->end; i++) { if (span->array->mask[i]) { - assert(span->array->x[i] >= ctx->DrawBuffer->_Xmin); - assert(span->array->x[i] < ctx->DrawBuffer->_Xmax); - assert(span->array->y[i] >= ctx->DrawBuffer->_Ymin); - assert(span->array->y[i] < ctx->DrawBuffer->_Ymax); + assert(span->array->x[i] >= fb->_Xmin); + assert(span->array->x[i] < fb->_Xmax); + assert(span->array->y[i] >= fb->_Ymin); + assert(span->array->y[i] < fb->_Ymax); } } } @@ -873,7 +877,7 @@ _swrast_write_index_span( GLcontext *ctx, SWspan *span) #endif /* we have to wait until after occlusion to do this test */ - if (ctx->Color.DrawBuffer == GL_NONE || ctx->Color.IndexMask == 0) { + if (ctx->Color.IndexMask == 0) { /* write no pixels */ span->arrayMask = origArrayMask; return; @@ -909,22 +913,21 @@ _swrast_write_index_span( GLcontext *ctx, SWspan *span) * Write to renderbuffers */ { - struct gl_framebuffer *fb = ctx->DrawBuffer; - const GLuint output = 0; /* only frag progs can write to other outputs */ - const GLuint numDrawBuffers = fb->_NumColorDrawBuffers[output]; - GLuint indexSave[MAX_WIDTH]; + const GLuint numBuffers = fb->_NumColorDrawBuffers; GLuint buf; - if (numDrawBuffers > 1) { - /* save indexes for second, third renderbuffer writes */ - _mesa_memcpy(indexSave, span->array->index, - span->end * sizeof(indexSave[0])); - } + for (buf = 0; buf < numBuffers; buf++) { + struct gl_renderbuffer *rb = fb->_ColorDrawBuffers[buf]; + GLuint indexSave[MAX_WIDTH]; - for (buf = 0; buf < fb->_NumColorDrawBuffers[output]; buf++) { - struct gl_renderbuffer *rb = fb->_ColorDrawBuffers[output][buf]; ASSERT(rb->_BaseFormat == GL_COLOR_INDEX); + if (numBuffers > 1) { + /* save indexes for second, third renderbuffer writes */ + _mesa_memcpy(indexSave, span->array->index, + span->end * sizeof(indexSave[0])); + } + if (ctx->Color.IndexLogicOpEnabled) { _swrast_logicop_ci_span(ctx, rb, span); } @@ -999,7 +1002,7 @@ _swrast_write_index_span( GLcontext *ctx, SWspan *span) } } - if (buf + 1 < numDrawBuffers) { + if (buf + 1 < numBuffers) { /* restore original span values */ _mesa_memcpy(span->array->index, indexSave, span->end * sizeof(indexSave[0])); @@ -1029,6 +1032,7 @@ add_specular(GLcontext *ctx, SWspan *span) ASSERT(!ctx->FragmentProgram._Current); ASSERT(span->arrayMask & SPAN_RGBA); ASSERT(swrast->_ActiveAttribMask & FRAG_BIT_COL1); + (void) swrast; /* silence warning */ if (span->array->ChanType == GL_FLOAT) { if ((span->arrayAttribs & FRAG_BIT_COL0) == 0) { @@ -1116,7 +1120,7 @@ clamp_colors(SWspan *span) /** * Convert the span's color arrays to the given type. - * The only way 'output' can be greater than one is when we have a fragment + * The only way 'output' can be greater than zero is when we have a fragment * program that writes to gl_FragData[1] or higher. * \param output which fragment program color output is being processed */ @@ -1180,8 +1184,10 @@ shade_texture_span(GLcontext *ctx, SWspan *span) if (span->primitive == GL_BITMAP && span->array->ChanType != GL_FLOAT) { convert_color_type(span, GL_FLOAT, 0); } - if (span->primitive != GL_POINT) { - /* for points, we populated the arrays already */ + if (span->primitive != GL_POINT || + (span->interpMask & SPAN_RGBA) || + ctx->Point.PointSprite) { + /* for single-pixel points, we populated the arrays already */ interpolate_active_attribs(ctx, span, ~0); } span->array->ChanType = GL_FLOAT; @@ -1246,7 +1252,6 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) || ctx->ATIFragmentShader._Enabled); const GLboolean shaderOrTexture = shader || ctx->Texture._EnabledUnits; struct gl_framebuffer *fb = ctx->DrawBuffer; - GLuint output; /* printf("%s() interp 0x%x array 0x%x\n", __FUNCTION__, @@ -1306,6 +1311,7 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) /* Do the alpha test */ if (ctx->Color.AlphaEnabled) { if (!_swrast_alpha_test(ctx, span)) { + /* all fragments failed test */ goto end; } } @@ -1318,6 +1324,7 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) if (ctx->Stencil.Enabled && fb->Visual.stencilBits > 0) { /* Combined Z/stencil tests */ if (!_swrast_stencil_and_ztest_span(ctx, span)) { + /* all fragments failed test */ goto end; } } @@ -1326,6 +1333,7 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) ASSERT(ctx->Depth.Test); ASSERT(span->arrayMask & SPAN_Z); if (!_swrast_depth_test_span(ctx, span)) { + /* all fragments failed test */ goto end; } } @@ -1345,6 +1353,7 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) * the occlusion test. */ if (colorMask == 0x0) { + /* no colors to write */ goto end; } @@ -1358,7 +1367,7 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) #if CHAN_BITS == 32 if ((span->arrayAttribs & FRAG_BIT_COL0) == 0) { - interpolate_int_colors(ctx, span); + interpolate_active_attribs(ctx, span, FRAG_BIT_COL0); } #else if ((span->arrayMask & SPAN_RGBA) == 0) { @@ -1396,67 +1405,67 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) /* * Write to renderbuffers */ - /* Loop over color outputs (GL_ARB_draw_buffers) written by frag prog */ - for (output = 0; output < swrast->_NumColorOutputs; output++) { - if (swrast->_ColorOutputsMask & (1 << output)) { - const GLuint numDrawBuffers = fb->_NumColorDrawBuffers[output]; - GLchan rgbaSave[MAX_WIDTH][4]; - GLuint buf; - - ASSERT(numDrawBuffers > 0); - - if (fb->_ColorDrawBuffers[output][0]->DataType - != span->array->ChanType || output > 0) { - convert_color_type(span, - fb->_ColorDrawBuffers[output][0]->DataType, - output); - } - - if (numDrawBuffers > 1) { - /* save colors for second, third renderbuffer writes */ - _mesa_memcpy(rgbaSave, span->array->rgba, - 4 * span->end * sizeof(GLchan)); - } - - /* Loop over renderbuffers (i.e. GL_FRONT_AND_BACK) */ - for (buf = 0; buf < numDrawBuffers; buf++) { - struct gl_renderbuffer *rb = fb->_ColorDrawBuffers[output][buf]; - ASSERT(rb->_BaseFormat == GL_RGBA || rb->_BaseFormat == GL_RGB); - - if (ctx->Color._LogicOpEnabled) { - _swrast_logicop_rgba_span(ctx, rb, span); - } - else if (ctx->Color.BlendEnabled) { - _swrast_blend_span(ctx, rb, span); - } - - if (colorMask != 0xffffffff) { - _swrast_mask_rgba_span(ctx, rb, 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); - } - 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); - } - - if (buf + 1 < numDrawBuffers) { - /* restore original span values */ - _mesa_memcpy(span->array->rgba, rgbaSave, - 4 * span->end * sizeof(GLchan)); - } - } /* for buf */ - } /* if output is written to */ - } /* for output */ + { + const GLuint numBuffers = fb->_NumColorDrawBuffers; + const GLboolean multiFragOutputs = numBuffers > 1; + GLuint buf; + + for (buf = 0; buf < numBuffers; buf++) { + struct gl_renderbuffer *rb = fb->_ColorDrawBuffers[buf]; + + /* color[fragOutput] will be written to buffer[buf] */ + + if (rb) { + GLchan rgbaSave[MAX_WIDTH][4]; + const GLuint fragOutput = multiFragOutputs ? buf : 0; + + if (rb->DataType != span->array->ChanType || fragOutput > 0) { + convert_color_type(span, rb->DataType, fragOutput); + } + + if (!multiFragOutputs && numBuffers > 1) { + /* save colors for second, third renderbuffer writes */ + _mesa_memcpy(rgbaSave, span->array->rgba, + 4 * span->end * sizeof(GLchan)); + } + + ASSERT(rb->_BaseFormat == GL_RGBA || rb->_BaseFormat == GL_RGB); + + if (ctx->Color._LogicOpEnabled) { + _swrast_logicop_rgba_span(ctx, rb, span); + } + else if (ctx->Color.BlendEnabled) { + _swrast_blend_span(ctx, rb, span); + } + + if (colorMask != 0xffffffff) { + _swrast_mask_rgba_span(ctx, rb, 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); + } + 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); + } + + if (!multiFragOutputs && numBuffers > 1) { + /* restore original span values */ + _mesa_memcpy(span->array->rgba, rgbaSave, + 4 * span->end * sizeof(GLchan)); + } + + } /* if rb */ + } /* for buf */ + } end: /* restore these values before returning */