diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915/intel_span.c')
l---------[-rw-r--r--] | src/mesa/drivers/dri/i915/intel_span.c | 410 |
1 files changed, 1 insertions, 409 deletions
diff --git a/src/mesa/drivers/dri/i915/intel_span.c b/src/mesa/drivers/dri/i915/intel_span.c index d1f8ef0..05e5e8e 100644..120000 --- a/src/mesa/drivers/dri/i915/intel_span.c +++ b/src/mesa/drivers/dri/i915/intel_span.c @@ -1,409 +1 @@ -/************************************************************************** - * - * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. - * 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, sub license, 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 (including the - * next paragraph) 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. - * - **************************************************************************/ - -#include "glheader.h" -#include "macros.h" -#include "mtypes.h" -#include "colormac.h" - -#include "intel_fbo.h" -#include "intel_screen.h" -#include "intel_span.h" -#include "intel_regions.h" -#include "intel_ioctl.h" -#include "intel_tex.h" - -#include "swrast/swrast.h" - -/* - break intelWriteRGBASpan_ARGB8888 -*/ - -#undef DBG -#define DBG 0 - -#define LOCAL_VARS \ - struct intel_context *intel = intel_context(ctx); \ - struct intel_renderbuffer *irb = intel_renderbuffer(rb); \ - const GLint yScale = irb->RenderToTexture ? 1 : -1; \ - const GLint yBias = irb->RenderToTexture ? 0 : irb->Base.Height - 1; \ - GLubyte *buf = (GLubyte *) irb->pfMap \ - + (intel->drawY * irb->pfPitch + intel->drawX) * irb->region->cpp;\ - GLuint p; \ - assert(irb->pfMap);\ - (void) p; - -/* XXX FBO: this is identical to the macro in spantmp2.h except we get - * the cliprect info from the context, not the driDrawable. - * Move this into spantmp2.h someday. - */ -#define HW_CLIPLOOP() \ - do { \ - int _nc = intel->numClipRects; \ - while ( _nc-- ) { \ - int minx = intel->pClipRects[_nc].x1 - intel->drawX; \ - int miny = intel->pClipRects[_nc].y1 - intel->drawY; \ - int maxx = intel->pClipRects[_nc].x2 - intel->drawX; \ - int maxy = intel->pClipRects[_nc].y2 - intel->drawY; - - - - -#define Y_FLIP(_y) ((_y) * yScale + yBias) - -#define HW_LOCK() - -#define HW_UNLOCK() - -/* 16 bit, RGB565 color spanline and pixel functions - */ -#define SPANTMP_PIXEL_FMT GL_RGB -#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5 - -#define TAG(x) intel##x##_RGB565 -#define TAG2(x,y) intel##x##_RGB565##y -#define GET_PTR(X,Y) (buf + ((Y) * irb->pfPitch + (X)) * 2) -#include "spantmp2.h" - -/* 32 bit, ARGB8888 color spanline and pixel functions - */ -#define SPANTMP_PIXEL_FMT GL_BGRA -#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV - -#define TAG(x) intel##x##_ARGB8888 -#define TAG2(x,y) intel##x##_ARGB8888##y -#define GET_PTR(X,Y) (buf + ((Y) * irb->pfPitch + (X)) * 4) -#include "spantmp2.h" - - -#define LOCAL_DEPTH_VARS \ - struct intel_context *intel = intel_context(ctx); \ - struct intel_renderbuffer *irb = intel_renderbuffer(rb); \ - const GLuint pitch = irb->pfPitch/***XXX region->pitch*/; /* in pixels */ \ - const GLint yScale = irb->RenderToTexture ? 1 : -1; \ - const GLint yBias = irb->RenderToTexture ? 0 : irb->Base.Height - 1; \ - char *buf = (char *) irb->pfMap/*XXX use region->map*/ + \ - (intel->drawY * pitch + intel->drawX) * irb->region->cpp; - - -#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS - -/** - ** 16-bit depthbuffer functions. - **/ -#define WRITE_DEPTH( _x, _y, d ) \ - ((GLushort *)buf)[(_x) + (_y) * pitch] = d; - -#define READ_DEPTH( d, _x, _y ) \ - d = ((GLushort *)buf)[(_x) + (_y) * pitch]; - - -#define TAG(x) intel##x##_z16 -#include "depthtmp.h" - - -/** - ** 24/8-bit interleaved depth/stencil functions - ** Note: we're actually reading back combined depth+stencil values. - ** The wrappers in main/depthstencil.c are used to extract the depth - ** and stencil values. - **/ -/* Change ZZZS -> SZZZ */ -#define WRITE_DEPTH( _x, _y, d ) { \ - GLuint tmp = ((d) >> 8) | ((d) << 24); \ - ((GLuint *)buf)[(_x) + (_y) * pitch] = tmp; \ -} - -/* Change SZZZ -> ZZZS */ -#define READ_DEPTH( d, _x, _y ) { \ - GLuint tmp = ((GLuint *)buf)[(_x) + (_y) * pitch]; \ - d = (tmp << 8) | (tmp >> 24); \ -} - -#define TAG(x) intel##x##_z24_s8 -#include "depthtmp.h" - - -/** - ** 8-bit stencil function (XXX FBO: This is obsolete) - **/ -#define WRITE_STENCIL( _x, _y, d ) { \ - GLuint tmp = ((GLuint *)buf)[(_x) + (_y) * pitch]; \ - tmp &= 0xffffff; \ - tmp |= ((d) << 24); \ - ((GLuint *) buf)[(_x) + (_y) * pitch] = tmp; \ -} - -#define READ_STENCIL( d, _x, _y ) \ - d = ((GLuint *)buf)[(_x) + (_y) * pitch] >> 24; - -#define TAG(x) intel##x##_z24_s8 -#include "stenciltmp.h" - - - -/** - * Map or unmap all the renderbuffers which we may need during - * software rendering. - * XXX in the future, we could probably convey extra information to - * reduce the number of mappings needed. I.e. if doing a glReadPixels - * from the depth buffer, we really only need one mapping. - * - * XXX Rewrite this function someday. - * We can probably just loop over all the renderbuffer attachments, - * map/unmap all of them, and not worry about the _ColorDrawBuffers - * _ColorReadBuffer, _DepthBuffer or _StencilBuffer fields. - */ -static void -intel_map_unmap_buffers(struct intel_context *intel, GLboolean map) -{ - GLcontext *ctx = &intel->ctx; - GLuint i, j; - struct intel_renderbuffer *irb; - - /* color draw buffers */ - for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { - for (j = 0; j < ctx->DrawBuffer->_NumColorDrawBuffers[i]; j++) { - struct gl_renderbuffer *rb = - ctx->DrawBuffer->_ColorDrawBuffers[i][j]; - irb = intel_renderbuffer(rb); - if (irb) { - /* this is a user-created intel_renderbuffer */ - if (irb->region) { - if (map) - intel_region_map(intel->intelScreen, irb->region); - else - intel_region_unmap(intel->intelScreen, irb->region); - irb->pfMap = irb->region->map; - irb->pfPitch = irb->region->pitch; - } - } - } - } - - /* check for render to textures */ - for (i = 0; i < BUFFER_COUNT; i++) { - struct gl_renderbuffer_attachment *att = - ctx->DrawBuffer->Attachment + i; - struct gl_texture_object *tex = att->Texture; - if (tex) { - /* render to texture */ - ASSERT(att->Renderbuffer); - if (map) { - struct gl_texture_image *texImg; - texImg = tex->Image[att->CubeMapFace][att->TextureLevel]; - intel_tex_map_images(intel, intel_texture_object(tex)); - } - else { - intel_tex_unmap_images(intel, intel_texture_object(tex)); - } - } - } - - /* color read buffers */ - irb = intel_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer); - if (irb && irb->region) { - if (map) - intel_region_map(intel->intelScreen, irb->region); - else - intel_region_unmap(intel->intelScreen, irb->region); - irb->pfMap = irb->region->map; - irb->pfPitch = irb->region->pitch; - } - - /* Account for front/back color page flipping. - * The span routines use the pfMap and pfPitch fields which will - * swap the front/back region map/pitch if we're page flipped. - * Do this after mapping, above, so the map field is valid. - */ -#if 0 - if (map && ctx->DrawBuffer->Name == 0) { - struct intel_renderbuffer *irbFront - = intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_FRONT_LEFT); - struct intel_renderbuffer *irbBack - = intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_BACK_LEFT); - if (irbBack) { - /* double buffered */ - if (intel->sarea->pf_current_page == 0) { - irbFront->pfMap = irbFront->region->map; - irbFront->pfPitch = irbFront->region->pitch; - irbBack->pfMap = irbBack->region->map; - irbBack->pfPitch = irbBack->region->pitch; - } - else { - irbFront->pfMap = irbBack->region->map; - irbFront->pfPitch = irbBack->region->pitch; - irbBack->pfMap = irbFront->region->map; - irbBack->pfPitch = irbFront->region->pitch; - } - } - } -#endif - - /* depth buffer (Note wrapper!) */ - if (ctx->DrawBuffer->_DepthBuffer) { - irb = intel_renderbuffer(ctx->DrawBuffer->_DepthBuffer->Wrapped); - if (irb && irb->region && irb->Base.Name != 0) { - if (map) { - intel_region_map(intel->intelScreen, irb->region); - irb->pfMap = irb->region->map; - irb->pfPitch = irb->region->pitch; - } - else { - intel_region_unmap(intel->intelScreen, irb->region); - irb->pfMap = NULL; - irb->pfPitch = 0; - } - } - } - - /* stencil buffer (Note wrapper!) */ - if (ctx->DrawBuffer->_StencilBuffer) { - irb = intel_renderbuffer(ctx->DrawBuffer->_StencilBuffer->Wrapped); - if (irb && irb->region && irb->Base.Name != 0) { - if (map) { - intel_region_map(intel->intelScreen, irb->region); - irb->pfMap = irb->region->map; - irb->pfPitch = irb->region->pitch; - } - else { - intel_region_unmap(intel->intelScreen, irb->region); - irb->pfMap = NULL; - irb->pfPitch = 0; - } - } - } -} - - - -/** - * Prepare for softare rendering. Map current read/draw framebuffers' - * renderbuffes and all currently bound texture objects. - * - * Old note: Moved locking out to get reasonable span performance. - */ -void -intelSpanRenderStart(GLcontext * ctx) -{ - struct intel_context *intel = intel_context(ctx); - GLuint i; - - intelFinish(&intel->ctx); - LOCK_HARDWARE(intel); - -#if 0 - /* Just map the framebuffer and all textures. Bufmgr code will - * take care of waiting on the necessary fences: - */ - intel_region_map(intel->intelScreen, intel->front_region); - intel_region_map(intel->intelScreen, intel->back_region); - intel_region_map(intel->intelScreen, intel->intelScreen->depth_region); -#endif - - for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) { - if (ctx->Texture.Unit[i]._ReallyEnabled) { - struct gl_texture_object *texObj = ctx->Texture.Unit[i]._Current; - intel_tex_map_images(intel, intel_texture_object(texObj)); - } - } - - intel_map_unmap_buffers(intel, GL_TRUE); -} - -/** - * Called when done softare rendering. Unmap the buffers we mapped in - * the above function. - */ -void -intelSpanRenderFinish(GLcontext * ctx) -{ - struct intel_context *intel = intel_context(ctx); - GLuint i; - - _swrast_flush(ctx); - - /* Now unmap the framebuffer: - */ -#if 0 - intel_region_unmap(intel, intel->front_region); - intel_region_unmap(intel, intel->back_region); - intel_region_unmap(intel, intel->intelScreen->depth_region); -#endif - - for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) { - if (ctx->Texture.Unit[i]._ReallyEnabled) { - struct gl_texture_object *texObj = ctx->Texture.Unit[i]._Current; - intel_tex_unmap_images(intel, intel_texture_object(texObj)); - } - } - - intel_map_unmap_buffers(intel, GL_FALSE); - - UNLOCK_HARDWARE(intel); -} - - -void -intelInitSpanFuncs(GLcontext * ctx) -{ - struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); - swdd->SpanRenderStart = intelSpanRenderStart; - swdd->SpanRenderFinish = intelSpanRenderFinish; -} - - -/** - * Plug in appropriate span read/write functions for the given renderbuffer. - * These are used for the software fallbacks. - */ -void -intel_set_span_functions(struct gl_renderbuffer *rb) -{ - if (rb->_ActualFormat == GL_RGB5) { - /* 565 RGB */ - intelInitPointers_RGB565(rb); - } - else if (rb->_ActualFormat == GL_RGBA8) { - /* 8888 RGBA */ - intelInitPointers_ARGB8888(rb); - } - else if (rb->_ActualFormat == GL_DEPTH_COMPONENT16) { - intelInitDepthPointers_z16(rb); - } - else if (rb->_ActualFormat == GL_DEPTH_COMPONENT24 || /* XXX FBO remove */ - rb->_ActualFormat == GL_DEPTH24_STENCIL8_EXT) { - intelInitDepthPointers_z24_s8(rb); - } - else if (rb->_ActualFormat == GL_STENCIL_INDEX8_EXT) { /* XXX FBO remove */ - intelInitStencilPointers_z24_s8(rb); - } - else { - _mesa_problem(NULL, - "Unexpected _ActualFormat in intelSetSpanFunctions"); - } -} +../intel/intel_span.c
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