diff options
author | Alan Hourihane <alanh@tungstengraphics.com> | 2006-11-02 12:02:13 +0000 |
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committer | Alan Hourihane <alanh@tungstengraphics.com> | 2006-11-02 12:02:13 +0000 |
commit | 6d104cb932080c5c0d951fbc0ec6d30fb7ebef45 (patch) | |
tree | 17207f566d6eda4d3884ec03dfff6cdb5a1965ea /src/mesa/drivers/dri/i915tex/intel_span.c | |
parent | 18d52f96bb1f20b1887b67e87506835bca05d73a (diff) |
merge current trunk into vbo branch
Diffstat (limited to 'src/mesa/drivers/dri/i915tex/intel_span.c')
-rw-r--r-- | src/mesa/drivers/dri/i915tex/intel_span.c | 409 |
1 files changed, 409 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915tex/intel_span.c b/src/mesa/drivers/dri/i915tex/intel_span.c new file mode 100644 index 0000000000..ab0874e4fd --- /dev/null +++ b/src/mesa/drivers/dri/i915tex/intel_span.c @@ -0,0 +1,409 @@ +/************************************************************************** + * + * 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"); + } +} |