diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_context.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_context.c | 912 |
1 files changed, 912 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c new file mode 100644 index 0000000000..5f2035d79c --- /dev/null +++ b/src/mesa/drivers/dri/intel/intel_context.c @@ -0,0 +1,912 @@ +/************************************************************************** + * + * 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 "main/glheader.h" +#include "main/context.h" +#include "main/extensions.h" +#include "main/framebuffer.h" +#include "main/imports.h" +#include "main/points.h" + +#include "swrast/swrast.h" +#include "swrast_setup/swrast_setup.h" +#include "tnl/tnl.h" +#include "drivers/common/driverfuncs.h" +#include "drivers/common/meta.h" + +#include "i830_dri.h" + +#include "intel_chipset.h" +#include "intel_buffers.h" +#include "intel_tex.h" +#include "intel_batchbuffer.h" +#include "intel_clear.h" +#include "intel_extensions.h" +#include "intel_pixel.h" +#include "intel_regions.h" +#include "intel_buffer_objects.h" +#include "intel_fbo.h" +#include "intel_bufmgr.h" +#include "intel_screen.h" + +#include "drirenderbuffer.h" +#include "utils.h" + + +#ifndef INTEL_DEBUG +int INTEL_DEBUG = (0); +#endif + + +#define DRIVER_DATE "20100330 DEVELOPMENT" +#define DRIVER_DATE_GEM "GEM " DRIVER_DATE + + +static const GLubyte * +intelGetString(GLcontext * ctx, GLenum name) +{ + const struct intel_context *const intel = intel_context(ctx); + const char *chipset; + static char buffer[128]; + + switch (name) { + case GL_VENDOR: + return (GLubyte *) "Tungsten Graphics, Inc"; + break; + + case GL_RENDERER: + switch (intel->intelScreen->deviceID) { + case PCI_CHIP_845_G: + chipset = "Intel(R) 845G"; + break; + case PCI_CHIP_I830_M: + chipset = "Intel(R) 830M"; + break; + case PCI_CHIP_I855_GM: + chipset = "Intel(R) 852GM/855GM"; + break; + case PCI_CHIP_I865_G: + chipset = "Intel(R) 865G"; + break; + case PCI_CHIP_I915_G: + chipset = "Intel(R) 915G"; + break; + case PCI_CHIP_E7221_G: + chipset = "Intel (R) E7221G (i915)"; + break; + case PCI_CHIP_I915_GM: + chipset = "Intel(R) 915GM"; + break; + case PCI_CHIP_I945_G: + chipset = "Intel(R) 945G"; + break; + case PCI_CHIP_I945_GM: + chipset = "Intel(R) 945GM"; + break; + case PCI_CHIP_I945_GME: + chipset = "Intel(R) 945GME"; + break; + case PCI_CHIP_G33_G: + chipset = "Intel(R) G33"; + break; + case PCI_CHIP_Q35_G: + chipset = "Intel(R) Q35"; + break; + case PCI_CHIP_Q33_G: + chipset = "Intel(R) Q33"; + break; + case PCI_CHIP_IGD_GM: + case PCI_CHIP_IGD_G: + chipset = "Intel(R) IGD"; + break; + case PCI_CHIP_I965_Q: + chipset = "Intel(R) 965Q"; + break; + case PCI_CHIP_I965_G: + case PCI_CHIP_I965_G_1: + chipset = "Intel(R) 965G"; + break; + case PCI_CHIP_I946_GZ: + chipset = "Intel(R) 946GZ"; + break; + case PCI_CHIP_I965_GM: + chipset = "Intel(R) 965GM"; + break; + case PCI_CHIP_I965_GME: + chipset = "Intel(R) 965GME/GLE"; + break; + case PCI_CHIP_GM45_GM: + chipset = "Mobile Intel® GM45 Express Chipset"; + break; + case PCI_CHIP_IGD_E_G: + chipset = "Intel(R) Integrated Graphics Device"; + break; + case PCI_CHIP_G45_G: + chipset = "Intel(R) G45/G43"; + break; + case PCI_CHIP_Q45_G: + chipset = "Intel(R) Q45/Q43"; + break; + case PCI_CHIP_G41_G: + chipset = "Intel(R) G41"; + break; + case PCI_CHIP_B43_G: + chipset = "Intel(R) B43"; + break; + case PCI_CHIP_ILD_G: + chipset = "Intel(R) Ironlake Desktop"; + break; + case PCI_CHIP_ILM_G: + chipset = "Intel(R) Ironlake Mobile"; + break; + default: + chipset = "Unknown Intel Chipset"; + break; + } + + (void) driGetRendererString(buffer, chipset, DRIVER_DATE_GEM, 0); + return (GLubyte *) buffer; + + default: + return NULL; + } +} + +static void +intel_flush_front(GLcontext *ctx) +{ + struct intel_context *intel = intel_context(ctx); + __DRIcontext *driContext = intel->driContext; + __DRIscreen *const screen = intel->intelScreen->driScrnPriv; + + if ((ctx->DrawBuffer->Name == 0) && intel->front_buffer_dirty) { + if (screen->dri2.loader && + (screen->dri2.loader->base.version >= 2) + && (screen->dri2.loader->flushFrontBuffer != NULL) && + driContext->driDrawablePriv && + driContext->driDrawablePriv->loaderPrivate) { + (*screen->dri2.loader->flushFrontBuffer)(driContext->driDrawablePriv, + driContext->driDrawablePriv->loaderPrivate); + + /* We set the dirty bit in intel_prepare_render() if we're + * front buffer rendering once we get there. + */ + intel->front_buffer_dirty = GL_FALSE; + } + } +} + +static unsigned +intel_bits_per_pixel(const struct intel_renderbuffer *rb) +{ + return _mesa_get_format_bytes(rb->Base.Format) * 8; +} + +void +intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) +{ + struct gl_framebuffer *fb = drawable->driverPrivate; + struct intel_renderbuffer *rb; + struct intel_region *region, *depth_region; + struct intel_context *intel = context->driverPrivate; + struct intel_renderbuffer *front_rb, *back_rb, *depth_rb, *stencil_rb; + __DRIbuffer *buffers = NULL; + __DRIscreen *screen; + int i, count; + unsigned int attachments[10]; + const char *region_name; + + /* If we're rendering to the fake front buffer, make sure all the + * pending drawing has landed on the real front buffer. Otherwise + * when we eventually get to DRI2GetBuffersWithFormat the stale + * real front buffer contents will get copied to the new fake front + * buffer. + */ + if (intel->is_front_buffer_rendering) { + intel_flush(&intel->ctx); + intel_flush_front(&intel->ctx); + } + + /* Set this up front, so that in case our buffers get invalidated + * while we're getting new buffers, we don't clobber the stamp and + * thus ignore the invalidate. */ + drawable->lastStamp = drawable->dri2.stamp; + + if (INTEL_DEBUG & DEBUG_DRI) + fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable); + + screen = intel->intelScreen->driScrnPriv; + + if (screen->dri2.loader + && (screen->dri2.loader->base.version > 2) + && (screen->dri2.loader->getBuffersWithFormat != NULL)) { + + front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); + back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); + depth_rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); + stencil_rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); + + i = 0; + if ((intel->is_front_buffer_rendering || + intel->is_front_buffer_reading || + !back_rb) && front_rb) { + attachments[i++] = __DRI_BUFFER_FRONT_LEFT; + attachments[i++] = intel_bits_per_pixel(front_rb); + } + + if (back_rb) { + attachments[i++] = __DRI_BUFFER_BACK_LEFT; + attachments[i++] = intel_bits_per_pixel(back_rb); + } + + if ((depth_rb != NULL) && (stencil_rb != NULL)) { + attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL; + attachments[i++] = intel_bits_per_pixel(depth_rb); + } else if (depth_rb != NULL) { + attachments[i++] = __DRI_BUFFER_DEPTH; + attachments[i++] = intel_bits_per_pixel(depth_rb); + } else if (stencil_rb != NULL) { + attachments[i++] = __DRI_BUFFER_STENCIL; + attachments[i++] = intel_bits_per_pixel(stencil_rb); + } + + buffers = + (*screen->dri2.loader->getBuffersWithFormat)(drawable, + &drawable->w, + &drawable->h, + attachments, i / 2, + &count, + drawable->loaderPrivate); + } else if (screen->dri2.loader) { + i = 0; + if (intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT)) + attachments[i++] = __DRI_BUFFER_FRONT_LEFT; + if (intel_get_renderbuffer(fb, BUFFER_BACK_LEFT)) + attachments[i++] = __DRI_BUFFER_BACK_LEFT; + if (intel_get_renderbuffer(fb, BUFFER_DEPTH)) + attachments[i++] = __DRI_BUFFER_DEPTH; + if (intel_get_renderbuffer(fb, BUFFER_STENCIL)) + attachments[i++] = __DRI_BUFFER_STENCIL; + + buffers = (*screen->dri2.loader->getBuffers)(drawable, + &drawable->w, + &drawable->h, + attachments, i, + &count, + drawable->loaderPrivate); + } + + if (buffers == NULL) + return; + + drawable->x = 0; + drawable->y = 0; + drawable->backX = 0; + drawable->backY = 0; + drawable->numClipRects = 1; + drawable->pClipRects[0].x1 = 0; + drawable->pClipRects[0].y1 = 0; + drawable->pClipRects[0].x2 = drawable->w; + drawable->pClipRects[0].y2 = drawable->h; + drawable->numBackClipRects = 1; + drawable->pBackClipRects[0].x1 = 0; + drawable->pBackClipRects[0].y1 = 0; + drawable->pBackClipRects[0].x2 = drawable->w; + drawable->pBackClipRects[0].y2 = drawable->h; + + depth_region = NULL; + for (i = 0; i < count; i++) { + switch (buffers[i].attachment) { + case __DRI_BUFFER_FRONT_LEFT: + rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); + region_name = "dri2 front buffer"; + break; + + case __DRI_BUFFER_FAKE_FRONT_LEFT: + rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); + region_name = "dri2 fake front buffer"; + break; + + case __DRI_BUFFER_BACK_LEFT: + rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); + region_name = "dri2 back buffer"; + break; + + case __DRI_BUFFER_DEPTH: + rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); + region_name = "dri2 depth buffer"; + break; + + case __DRI_BUFFER_DEPTH_STENCIL: + rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); + region_name = "dri2 depth / stencil buffer"; + break; + + case __DRI_BUFFER_STENCIL: + rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); + region_name = "dri2 stencil buffer"; + break; + + case __DRI_BUFFER_ACCUM: + default: + fprintf(stderr, + "unhandled buffer attach event, attacment type %d\n", + buffers[i].attachment); + return; + } + + if (rb == NULL) + continue; + + if (rb->region && rb->region->name == buffers[i].name) + continue; + + if (INTEL_DEBUG & DEBUG_DRI) + fprintf(stderr, + "attaching buffer %d, at %d, cpp %d, pitch %d\n", + buffers[i].name, buffers[i].attachment, + buffers[i].cpp, buffers[i].pitch); + + if (buffers[i].attachment == __DRI_BUFFER_STENCIL && depth_region) { + if (INTEL_DEBUG & DEBUG_DRI) + fprintf(stderr, "(reusing depth buffer as stencil)\n"); + intel_region_reference(®ion, depth_region); + } + else + region = intel_region_alloc_for_handle(intel, buffers[i].cpp, + drawable->w, + drawable->h, + buffers[i].pitch / buffers[i].cpp, + buffers[i].name, + region_name); + + if (buffers[i].attachment == __DRI_BUFFER_DEPTH) + depth_region = region; + + intel_renderbuffer_set_region(intel, rb, region); + intel_region_release(®ion); + + if (buffers[i].attachment == __DRI_BUFFER_DEPTH_STENCIL) { + rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); + if (rb != NULL) { + struct intel_region *stencil_region = NULL; + + if (rb->region && rb->region->name == buffers[i].name) + continue; + + intel_region_reference(&stencil_region, region); + intel_renderbuffer_set_region(intel, rb, stencil_region); + intel_region_release(&stencil_region); + } + } + } + + driUpdateFramebufferSize(&intel->ctx, drawable); +} + +/** + * intel_prepare_render should be called anywhere that curent read/drawbuffer + * state is required. + */ +void +intel_prepare_render(struct intel_context *intel) +{ + __DRIcontext *driContext = intel->driContext; + __DRIdrawable *drawable; + + drawable = driContext->driDrawablePriv; + if (drawable->dri2.stamp != driContext->dri2.draw_stamp) { + if (drawable->lastStamp != drawable->dri2.stamp) + intel_update_renderbuffers(driContext, drawable); + intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer); + driContext->dri2.draw_stamp = drawable->dri2.stamp; + } + + drawable = driContext->driReadablePriv; + if (drawable->dri2.stamp != driContext->dri2.read_stamp) { + if (drawable->lastStamp != drawable->dri2.stamp) + intel_update_renderbuffers(driContext, drawable); + driContext->dri2.read_stamp = drawable->dri2.stamp; + } + + /* If we're currently rendering to the front buffer, the rendering + * that will happen next will probably dirty the front buffer. So + * mark it as dirty here. + */ + if (intel->is_front_buffer_rendering) + intel->front_buffer_dirty = GL_TRUE; + + /* Wait for the swapbuffers before the one we just emitted, so we + * don't get too many swaps outstanding for apps that are GPU-heavy + * but not CPU-heavy. + * + * We're using intelDRI2Flush (called from the loader before + * swapbuffer) and glFlush (for front buffer rendering) as the + * indicator that a frame is done and then throttle when we get + * here as we prepare to render the next frame. At this point for + * round trips for swap/copy and getting new buffers are done and + * we'll spend less time waiting on the GPU. + * + * Unfortunately, we don't have a handle to the batch containing + * the swap, and getting our hands on that doesn't seem worth it, + * so we just us the first batch we emitted after the last swap. + */ + if (intel->need_throttle && intel->first_post_swapbuffers_batch) { + drm_intel_bo_wait_rendering(intel->first_post_swapbuffers_batch); + drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); + intel->first_post_swapbuffers_batch = NULL; + intel->need_throttle = GL_FALSE; + } +} + +static void +intel_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) +{ + struct intel_context *intel = intel_context(ctx); + __DRIcontext *driContext = intel->driContext; + + if (intel->saved_viewport) + intel->saved_viewport(ctx, x, y, w, h); + + if (!intel->meta.internal_viewport_call && ctx->DrawBuffer->Name == 0) { + dri2InvalidateDrawable(driContext->driDrawablePriv); + dri2InvalidateDrawable(driContext->driReadablePriv); + } +} + +static const struct dri_debug_control debug_control[] = { + { "tex", DEBUG_TEXTURE}, + { "state", DEBUG_STATE}, + { "ioctl", DEBUG_IOCTL}, + { "blit", DEBUG_BLIT}, + { "mip", DEBUG_MIPTREE}, + { "fall", DEBUG_FALLBACKS}, + { "verb", DEBUG_VERBOSE}, + { "bat", DEBUG_BATCH}, + { "pix", DEBUG_PIXEL}, + { "buf", DEBUG_BUFMGR}, + { "reg", DEBUG_REGION}, + { "fbo", DEBUG_FBO}, + { "gs", DEBUG_GS}, + { "sync", DEBUG_SYNC}, + { "prim", DEBUG_PRIMS }, + { "vert", DEBUG_VERTS }, + { "dri", DEBUG_DRI }, + { "sf", DEBUG_SF }, + { "san", DEBUG_SANITY }, + { "sleep", DEBUG_SLEEP }, + { "stats", DEBUG_STATS }, + { "tile", DEBUG_TILE }, + { "sing", DEBUG_SINGLE_THREAD }, + { "thre", DEBUG_SINGLE_THREAD }, + { "wm", DEBUG_WM }, + { "glsl_force", DEBUG_GLSL_FORCE }, + { "urb", DEBUG_URB }, + { "vs", DEBUG_VS }, + { "clip", DEBUG_CLIP }, + { NULL, 0 } +}; + + +static void +intelInvalidateState(GLcontext * ctx, GLuint new_state) +{ + struct intel_context *intel = intel_context(ctx); + + _swrast_InvalidateState(ctx, new_state); + _swsetup_InvalidateState(ctx, new_state); + _vbo_InvalidateState(ctx, new_state); + _tnl_InvalidateState(ctx, new_state); + _tnl_invalidate_vertex_state(ctx, new_state); + + intel->NewGLState |= new_state; + + if (intel->vtbl.invalidate_state) + intel->vtbl.invalidate_state( intel, new_state ); +} + +void +intel_flush(GLcontext *ctx) +{ + struct intel_context *intel = intel_context(ctx); + + if (intel->Fallback) + _swrast_flush(ctx); + + if (intel->gen < 4) + INTEL_FIREVERTICES(intel); + + if (intel->batch->map != intel->batch->ptr) + intel_batchbuffer_flush(intel->batch); +} + +static void +intel_glFlush(GLcontext *ctx) +{ + struct intel_context *intel = intel_context(ctx); + + intel_flush(ctx); + intel_flush_front(ctx); + intel->need_throttle = GL_TRUE; +} + +void +intelFinish(GLcontext * ctx) +{ + struct gl_framebuffer *fb = ctx->DrawBuffer; + int i; + + intel_flush(ctx); + intel_flush_front(ctx); + + for (i = 0; i < fb->_NumColorDrawBuffers; i++) { + struct intel_renderbuffer *irb; + + irb = intel_renderbuffer(fb->_ColorDrawBuffers[i]); + + if (irb && irb->region) + drm_intel_bo_wait_rendering(irb->region->buffer); + } + if (fb->_DepthBuffer) { + /* XXX: Wait on buffer idle */ + } +} + +void +intelInitDriverFunctions(struct dd_function_table *functions) +{ + _mesa_init_driver_functions(functions); + + functions->Flush = intel_glFlush; + functions->Finish = intelFinish; + functions->GetString = intelGetString; + functions->UpdateState = intelInvalidateState; + + intelInitTextureFuncs(functions); + intelInitTextureImageFuncs(functions); + intelInitTextureSubImageFuncs(functions); + intelInitTextureCopyImageFuncs(functions); + intelInitStateFuncs(functions); + intelInitClearFuncs(functions); + intelInitBufferFuncs(functions); + intelInitPixelFuncs(functions); + intelInitBufferObjectFuncs(functions); + intel_init_syncobj_functions(functions); +} + + +GLboolean +intelInitContext(struct intel_context *intel, + int api, + const __GLcontextModes * mesaVis, + __DRIcontext * driContextPriv, + void *sharedContextPrivate, + struct dd_function_table *functions) +{ + GLcontext *ctx = &intel->ctx; + GLcontext *shareCtx = (GLcontext *) sharedContextPrivate; + __DRIscreen *sPriv = driContextPriv->driScreenPriv; + struct intel_screen *intelScreen = sPriv->private; + int bo_reuse_mode; + + /* we can't do anything without a connection to the device */ + if (intelScreen->bufmgr == NULL) + return GL_FALSE; + + /* Can't rely on invalidate events, fall back to glViewport hack */ + if (!driContextPriv->driScreenPriv->dri2.useInvalidate) { + intel->saved_viewport = functions->Viewport; + functions->Viewport = intel_viewport; + } + + if (!_mesa_initialize_context_for_api(&intel->ctx, api, mesaVis, shareCtx, + functions, (void *) intel)) { + printf("%s: failed to init mesa context\n", __FUNCTION__); + return GL_FALSE; + } + + driContextPriv->driverPrivate = intel; + intel->intelScreen = intelScreen; + intel->driContext = driContextPriv; + intel->driFd = sPriv->fd; + + intel->has_xrgb_textures = GL_TRUE; + if (IS_GEN6(intel->intelScreen->deviceID)) { + intel->gen = 6; + intel->needs_ff_sync = GL_TRUE; + intel->has_luminance_srgb = GL_TRUE; + } else if (IS_GEN5(intel->intelScreen->deviceID)) { + intel->gen = 5; + intel->needs_ff_sync = GL_TRUE; + intel->has_luminance_srgb = GL_TRUE; + } else if (IS_965(intel->intelScreen->deviceID)) { + intel->gen = 4; + if (IS_G4X(intel->intelScreen->deviceID)) { + intel->has_luminance_srgb = GL_TRUE; + intel->is_g4x = GL_TRUE; + } + } else if (IS_9XX(intel->intelScreen->deviceID)) { + intel->gen = 3; + if (IS_945(intel->intelScreen->deviceID)) { + intel->is_945 = GL_TRUE; + } + } else { + intel->gen = 2; + if (intel->intelScreen->deviceID == PCI_CHIP_I830_M || + intel->intelScreen->deviceID == PCI_CHIP_845_G) { + intel->has_xrgb_textures = GL_FALSE; + } + } + + driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache, + sPriv->myNum, (intel->gen >= 4) ? "i965" : "i915"); + if (intelScreen->deviceID == PCI_CHIP_I865_G) + intel->maxBatchSize = 4096; + else + intel->maxBatchSize = BATCH_SZ; + + intel->bufmgr = intelScreen->bufmgr; + + bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse"); + switch (bo_reuse_mode) { + case DRI_CONF_BO_REUSE_DISABLED: + break; + case DRI_CONF_BO_REUSE_ALL: + intel_bufmgr_gem_enable_reuse(intel->bufmgr); + break; + } + + /* This doesn't yet catch all non-conformant rendering, but it's a + * start. + */ + if (getenv("INTEL_STRICT_CONFORMANCE")) { + unsigned int value = atoi(getenv("INTEL_STRICT_CONFORMANCE")); + if (value > 0) { + intel->conformance_mode = value; + } + else { + intel->conformance_mode = 1; + } + } + + if (intel->conformance_mode > 0) { + ctx->Const.MinLineWidth = 1.0; + ctx->Const.MinLineWidthAA = 1.0; + ctx->Const.MaxLineWidth = 1.0; + ctx->Const.MaxLineWidthAA = 1.0; + ctx->Const.LineWidthGranularity = 1.0; + } + else { + ctx->Const.MinLineWidth = 1.0; + ctx->Const.MinLineWidthAA = 1.0; + ctx->Const.MaxLineWidth = 5.0; + ctx->Const.MaxLineWidthAA = 5.0; + ctx->Const.LineWidthGranularity = 0.5; + } + + ctx->Const.MinPointSize = 1.0; + ctx->Const.MinPointSizeAA = 1.0; + ctx->Const.MaxPointSize = 255.0; + ctx->Const.MaxPointSizeAA = 3.0; + ctx->Const.PointSizeGranularity = 1.0; + + /* reinitialize the context point state. + * It depend on constants in __GLcontextRec::Const + */ + _mesa_init_point(ctx); + + meta_init_metaops(ctx, &intel->meta); + if (intel->gen >= 4) { + if (MAX_WIDTH > 8192) + ctx->Const.MaxRenderbufferSize = 8192; + } else { + if (MAX_WIDTH > 2048) + ctx->Const.MaxRenderbufferSize = 2048; + } + + /* Initialize the software rasterizer and helper modules. */ + _swrast_CreateContext(ctx); + _vbo_CreateContext(ctx); + _tnl_CreateContext(ctx); + _swsetup_CreateContext(ctx); + + /* Configure swrast to match hardware characteristics: */ + _swrast_allow_pixel_fog(ctx, GL_FALSE); + _swrast_allow_vertex_fog(ctx, GL_TRUE); + + _mesa_meta_init(ctx); + + intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; + intel->hw_stipple = 1; + + /* XXX FBO: this doesn't seem to be used anywhere */ + switch (mesaVis->depthBits) { + case 0: /* what to do in this case? */ + case 16: + intel->polygon_offset_scale = 1.0; + break; + case 24: + intel->polygon_offset_scale = 2.0; /* req'd to pass glean */ + break; + default: + assert(0); + break; + } + + if (intel->gen >= 4) + intel->polygon_offset_scale /= 0xffff; + + intel->RenderIndex = ~0; + + switch (ctx->API) { + case API_OPENGL: + intelInitExtensions(ctx); + break; + case API_OPENGLES: + break; + case API_OPENGLES2: + intelInitExtensionsES2(ctx); + break; + } + + INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control); + if (INTEL_DEBUG & DEBUG_BUFMGR) + dri_bufmgr_set_debug(intel->bufmgr, GL_TRUE); + + intel->batch = intel_batchbuffer_alloc(intel); + + intel_fbo_init(intel); + + if (intel->ctx.Mesa_DXTn) { + _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); + _mesa_enable_extension(ctx, "GL_S3_s3tc"); + } + else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) { + _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); + } + intel->use_texture_tiling = driQueryOptionb(&intel->optionCache, + "texture_tiling"); + intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z"); + + intel->prim.primitive = ~0; + + /* Force all software fallbacks */ + if (driQueryOptionb(&intel->optionCache, "no_rast")) { + fprintf(stderr, "disabling 3D rasterization\n"); + intel->no_rast = 1; + } + + if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) { + fprintf(stderr, "flushing batchbuffer before/after each draw call\n"); + intel->always_flush_batch = 1; + } + + if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) { + fprintf(stderr, "flushing GPU caches before/after each draw call\n"); + intel->always_flush_cache = 1; + } + + /* Disable all hardware rendering (skip emitting batches and fences/waits + * to the kernel) + */ + intel->no_hw = getenv("INTEL_NO_HW") != NULL; + + return GL_TRUE; +} + +void +intelDestroyContext(__DRIcontext * driContextPriv) +{ + struct intel_context *intel = + (struct intel_context *) driContextPriv->driverPrivate; + + assert(intel); /* should never be null */ + if (intel) { + INTEL_FIREVERTICES(intel); + + _mesa_meta_free(&intel->ctx); + + meta_destroy_metaops(&intel->meta); + + intel->vtbl.destroy(intel); + + _swsetup_DestroyContext(&intel->ctx); + _tnl_DestroyContext(&intel->ctx); + _vbo_DestroyContext(&intel->ctx); + + _swrast_DestroyContext(&intel->ctx); + intel->Fallback = 0x0; /* don't call _swrast_Flush later */ + + intel_batchbuffer_free(intel->batch); + intel->batch = NULL; + + free(intel->prim.vb); + intel->prim.vb = NULL; + drm_intel_bo_unreference(intel->prim.vb_bo); + intel->prim.vb_bo = NULL; + drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); + intel->first_post_swapbuffers_batch = NULL; + + driDestroyOptionCache(&intel->optionCache); + + /* free the Mesa context */ + _mesa_free_context_data(&intel->ctx); + + FREE(intel); + driContextPriv->driverPrivate = NULL; + } +} + +GLboolean +intelUnbindContext(__DRIcontext * driContextPriv) +{ + return GL_TRUE; +} + +GLboolean +intelMakeCurrent(__DRIcontext * driContextPriv, + __DRIdrawable * driDrawPriv, + __DRIdrawable * driReadPriv) +{ + struct intel_context *intel; + GET_CURRENT_CONTEXT(curCtx); + + if (driContextPriv) + intel = (struct intel_context *) driContextPriv->driverPrivate; + else + intel = NULL; + + /* According to the glXMakeCurrent() man page: "Pending commands to + * the previous context, if any, are flushed before it is released." + * But only flush if we're actually changing contexts. + */ + if (intel_context(curCtx) && intel_context(curCtx) != intel) { + _mesa_flush(curCtx); + } + + if (driContextPriv) { + struct gl_framebuffer *fb = driDrawPriv->driverPrivate; + struct gl_framebuffer *readFb = driReadPriv->driverPrivate; + + driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1; + driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1; + intel_prepare_render(intel); + _mesa_make_current(&intel->ctx, fb, readFb); + + /* We do this in intel_prepare_render() too, but intel->ctx.DrawBuffer + * is NULL at that point. We can't call _mesa_makecurrent() + * first, since we need the buffer size for the initial + * viewport. So just call intel_draw_buffer() again here. */ + intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer); + } + else { + _mesa_make_current(NULL, NULL, NULL); + } + + return GL_TRUE; +} |