X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fframebuffer.c;h=4f7736a64d04c526a8456bcf9fd7443bd7df3020;hb=db29869205ecc2d7254698daac3e9027f6c92619;hp=730de620611332c6d760cd34477145f98bbae958;hpb=c87247f6a8c5505fea3fa29dac372f9f5316a118;p=mesa.git diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c index 730de620611..4f7736a64d0 100644 --- a/src/mesa/main/framebuffer.c +++ b/src/mesa/main/framebuffer.c @@ -1,6 +1,5 @@ /* * Mesa 3-D graphics library - * Version: 7.2 * * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. * @@ -17,9 +16,10 @@ * 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 NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL 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. + * THE AUTHORS OR COPYRIGHT HOLDERS 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. */ @@ -29,9 +29,10 @@ * ushorts, uints, etc. */ - +#include #include "glheader.h" #include "imports.h" +#include "blend.h" #include "buffers.h" #include "context.h" #include "enums.h" @@ -42,6 +43,7 @@ #include "framebuffer.h" #include "renderbuffer.h" #include "texobj.h" +#include "glformats.h" @@ -128,7 +130,7 @@ _mesa_initialize_window_framebuffer(struct gl_framebuffer *fb, memset(fb, 0, sizeof(struct gl_framebuffer)); - _glthread_INIT_MUTEX(fb->Mutex); + mtx_init(&fb->Mutex, mtx_plain); fb->RefCount = 1; @@ -153,6 +155,8 @@ _mesa_initialize_window_framebuffer(struct gl_framebuffer *fb, fb->Delete = _mesa_destroy_framebuffer; fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT; + fb->_AllColorBuffersFixedPoint = !visual->floatMode; + fb->_HasSNormOrFloatColorBuffer = visual->floatMode; compute_depth_max(fb); } @@ -178,7 +182,7 @@ _mesa_initialize_user_framebuffer(struct gl_framebuffer *fb, GLuint name) fb->ColorReadBuffer = GL_COLOR_ATTACHMENT0_EXT; fb->_ColorReadBufferIndex = BUFFER_COLOR0; fb->Delete = _mesa_destroy_framebuffer; - _glthread_INIT_MUTEX(fb->Mutex); + mtx_init(&fb->Mutex, mtx_plain); } @@ -191,6 +195,7 @@ _mesa_destroy_framebuffer(struct gl_framebuffer *fb) { if (fb) { _mesa_free_framebuffer_data(fb); + free(fb->Label); free(fb); } } @@ -208,7 +213,7 @@ _mesa_free_framebuffer_data(struct gl_framebuffer *fb) assert(fb); assert(fb->RefCount == 0); - _glthread_DESTROY_MUTEX(fb->Mutex); + mtx_destroy(&fb->Mutex); for (i = 0; i < BUFFER_COUNT; i++) { struct gl_renderbuffer_attachment *att = &fb->Attachment[i]; @@ -218,8 +223,8 @@ _mesa_free_framebuffer_data(struct gl_framebuffer *fb) if (att->Texture) { _mesa_reference_texobj(&att->Texture, NULL); } - ASSERT(!att->Renderbuffer); - ASSERT(!att->Texture); + assert(!att->Renderbuffer); + assert(!att->Texture); att->Type = GL_NONE; } } @@ -239,11 +244,11 @@ _mesa_reference_framebuffer_(struct gl_framebuffer **ptr, GLboolean deleteFlag = GL_FALSE; struct gl_framebuffer *oldFb = *ptr; - _glthread_LOCK_MUTEX(oldFb->Mutex); - ASSERT(oldFb->RefCount > 0); + mtx_lock(&oldFb->Mutex); + assert(oldFb->RefCount > 0); oldFb->RefCount--; deleteFlag = (oldFb->RefCount == 0); - _glthread_UNLOCK_MUTEX(oldFb->Mutex); + mtx_unlock(&oldFb->Mutex); if (deleteFlag) oldFb->Delete(oldFb); @@ -253,9 +258,9 @@ _mesa_reference_framebuffer_(struct gl_framebuffer **ptr, assert(!*ptr); if (fb) { - _glthread_LOCK_MUTEX(fb->Mutex); + mtx_lock(&fb->Mutex); fb->RefCount++; - _glthread_UNLOCK_MUTEX(fb->Mutex); + mtx_unlock(&fb->Mutex); *ptr = fb; } } @@ -281,8 +286,8 @@ _mesa_resize_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb, * and return early. */ - /* For window system framebuffers, Name is zero */ - assert(fb->Name == 0); + /* Can only resize win-sys framebuffer objects */ + assert(_mesa_is_winsys_fbo(fb)); for (i = 0; i < BUFFER_COUNT; i++) { struct gl_renderbuffer_attachment *att = &fb->Attachment[i]; @@ -291,8 +296,8 @@ _mesa_resize_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb, /* only resize if size is changing */ if (rb->Width != width || rb->Height != height) { if (rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) { - ASSERT(rb->Width == width); - ASSERT(rb->Height == height); + assert(rb->Width == width); + assert(rb->Height == height); } else { _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer"); @@ -315,85 +320,6 @@ _mesa_resize_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb, } } - - -/** - * XXX THIS IS OBSOLETE - drivers should take care of detecting window - * size changes and act accordingly, likely calling _mesa_resize_framebuffer(). - * - * GL_MESA_resize_buffers extension. - * - * When this function is called, we'll ask the window system how large - * the current window is. If it's a new size, we'll call the driver's - * ResizeBuffers function. The driver will then resize its color buffers - * as needed, and maybe call the swrast's routine for reallocating - * swrast-managed depth/stencil/accum/etc buffers. - * \note This function should only be called through the GL API, not - * from device drivers (as was done in the past). - */ -void -_mesa_resizebuffers( struct gl_context *ctx ) -{ - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx ); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glResizeBuffersMESA\n"); - - if (!ctx->Driver.GetBufferSize) { - return; - } - - if (ctx->WinSysDrawBuffer) { - GLuint newWidth, newHeight; - struct gl_framebuffer *buffer = ctx->WinSysDrawBuffer; - - assert(buffer->Name == 0); - - /* ask device driver for size of output buffer */ - ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight ); - - /* see if size of device driver's color buffer (window) has changed */ - if (buffer->Width != newWidth || buffer->Height != newHeight) { - if (ctx->Driver.ResizeBuffers) - ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight ); - } - } - - if (ctx->WinSysReadBuffer - && ctx->WinSysReadBuffer != ctx->WinSysDrawBuffer) { - GLuint newWidth, newHeight; - struct gl_framebuffer *buffer = ctx->WinSysReadBuffer; - - assert(buffer->Name == 0); - - /* ask device driver for size of read buffer */ - ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight ); - - /* see if size of device driver's color buffer (window) has changed */ - if (buffer->Width != newWidth || buffer->Height != newHeight) { - if (ctx->Driver.ResizeBuffers) - ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight ); - } - } - - ctx->NewState |= _NEW_BUFFERS; /* to update scissor / window bounds */ -} - - -/* - * XXX THIS IS OBSOLETE - */ -void GLAPIENTRY -_mesa_ResizeBuffersMESA( void ) -{ - GET_CURRENT_CONTEXT(ctx); - - if (ctx->Extensions.MESA_resize_buffers) - _mesa_resizebuffers( ctx ); -} - - - /** * Examine all the framebuffer's renderbuffers to update the Width/Height * fields of the framebuffer. If we have renderbuffers with different @@ -408,7 +334,7 @@ update_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb) GLuint i; /* user-created framebuffers only */ - assert(fb->Name); + assert(_mesa_is_user_fbo(fb)); for (i = 0; i < BUFFER_COUNT; i++) { struct gl_renderbuffer_attachment *att = &fb->Attachment[i]; @@ -419,7 +345,7 @@ update_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb) } } - if (minWidth != ~0) { + if (minWidth != ~0U) { fb->Width = minWidth; fb->Height = minHeight; } @@ -430,6 +356,56 @@ update_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb) } +/** + * Calculate the inclusive bounding box for the scissor of a specific viewport + * + * \param ctx GL context. + * \param buffer Framebuffer to be checked against + * \param idx Index of the desired viewport + * \param bbox Bounding box for the scissored viewport. Stored as xmin, + * xmax, ymin, ymax. + * + * \warning This function assumes that the framebuffer dimensions are up to + * date (e.g., update_framebuffer_size has been recently called on \c buffer). + * + * \sa _mesa_clip_to_region + */ +void +_mesa_scissor_bounding_box(const struct gl_context *ctx, + const struct gl_framebuffer *buffer, + unsigned idx, int *bbox) +{ + bbox[0] = 0; + bbox[2] = 0; + bbox[1] = buffer->Width; + bbox[3] = buffer->Height; + + if (ctx->Scissor.EnableFlags & (1u << idx)) { + if (ctx->Scissor.ScissorArray[idx].X > bbox[0]) { + bbox[0] = ctx->Scissor.ScissorArray[idx].X; + } + if (ctx->Scissor.ScissorArray[idx].Y > bbox[2]) { + bbox[2] = ctx->Scissor.ScissorArray[idx].Y; + } + if (ctx->Scissor.ScissorArray[idx].X + ctx->Scissor.ScissorArray[idx].Width < bbox[1]) { + bbox[1] = ctx->Scissor.ScissorArray[idx].X + ctx->Scissor.ScissorArray[idx].Width; + } + if (ctx->Scissor.ScissorArray[idx].Y + ctx->Scissor.ScissorArray[idx].Height < bbox[3]) { + bbox[3] = ctx->Scissor.ScissorArray[idx].Y + ctx->Scissor.ScissorArray[idx].Height; + } + /* finally, check for empty region */ + if (bbox[0] > bbox[1]) { + bbox[0] = bbox[1]; + } + if (bbox[2] > bbox[3]) { + bbox[2] = bbox[3]; + } + } + + assert(bbox[0] <= bbox[1]); + assert(bbox[2] <= bbox[3]); +} + /** * Update the context's current drawing buffer's Xmin, Xmax, Ymin, Ymax fields. * These values are computed from the buffer's width and height and @@ -440,44 +416,22 @@ void _mesa_update_draw_buffer_bounds(struct gl_context *ctx) { struct gl_framebuffer *buffer = ctx->DrawBuffer; + int bbox[4]; if (!buffer) return; - if (buffer->Name) { + if (_mesa_is_user_fbo(buffer)) { /* user-created framebuffer size depends on the renderbuffers */ update_framebuffer_size(ctx, buffer); } - buffer->_Xmin = 0; - buffer->_Ymin = 0; - buffer->_Xmax = buffer->Width; - buffer->_Ymax = buffer->Height; - - if (ctx->Scissor.Enabled) { - if (ctx->Scissor.X > buffer->_Xmin) { - buffer->_Xmin = ctx->Scissor.X; - } - if (ctx->Scissor.Y > buffer->_Ymin) { - buffer->_Ymin = ctx->Scissor.Y; - } - if (ctx->Scissor.X + ctx->Scissor.Width < buffer->_Xmax) { - buffer->_Xmax = ctx->Scissor.X + ctx->Scissor.Width; - } - if (ctx->Scissor.Y + ctx->Scissor.Height < buffer->_Ymax) { - buffer->_Ymax = ctx->Scissor.Y + ctx->Scissor.Height; - } - /* finally, check for empty region */ - if (buffer->_Xmin > buffer->_Xmax) { - buffer->_Xmin = buffer->_Xmax; - } - if (buffer->_Ymin > buffer->_Ymax) { - buffer->_Ymin = buffer->_Ymax; - } - } - - ASSERT(buffer->_Xmin <= buffer->_Xmax); - ASSERT(buffer->_Ymin <= buffer->_Ymax); + /* Default to the first scissor as that's always valid */ + _mesa_scissor_bounding_box(ctx, buffer, 0, bbox); + buffer->_Xmin = bbox[0]; + buffer->_Ymin = bbox[2]; + buffer->_Xmax = bbox[1]; + buffer->_Ymax = bbox[3]; } @@ -515,7 +469,14 @@ _mesa_update_framebuffer_visual(struct gl_context *ctx, if (fb->Attachment[i].Renderbuffer) { const struct gl_renderbuffer *rb = fb->Attachment[i].Renderbuffer; const GLenum baseFormat = _mesa_get_format_base_format(rb->Format); - const gl_format fmt = rb->Format; + const mesa_format fmt = rb->Format; + + /* Grab samples and sampleBuffers from any attachment point (assuming + * the framebuffer is complete, we'll get the same answer from all + * attachments). + */ + fb->Visual.samples = rb->NumSamples; + fb->Visual.sampleBuffers = rb->NumSamples > 0 ? 1 : 0; if (_mesa_is_legal_color_format(ctx, baseFormat)) { fb->Visual.redBits = _mesa_get_format_bits(fmt, GL_RED_BITS); @@ -524,10 +485,8 @@ _mesa_update_framebuffer_visual(struct gl_context *ctx, fb->Visual.alphaBits = _mesa_get_format_bits(fmt, GL_ALPHA_BITS); fb->Visual.rgbBits = fb->Visual.redBits + fb->Visual.greenBits + fb->Visual.blueBits; - fb->Visual.samples = rb->NumSamples; - fb->Visual.sampleBuffers = rb->NumSamples > 0 ? 1 : 0; if (_mesa_get_format_color_encoding(fmt) == GL_SRGB) - fb->Visual.sRGBCapable = ctx->Const.sRGBCapable; + fb->Visual.sRGBCapable = ctx->Extensions.EXT_framebuffer_sRGB; break; } } @@ -537,7 +496,7 @@ _mesa_update_framebuffer_visual(struct gl_context *ctx, for (i = 0; i < BUFFER_COUNT; i++) { if (fb->Attachment[i].Renderbuffer) { const struct gl_renderbuffer *rb = fb->Attachment[i].Renderbuffer; - const gl_format fmt = rb->Format; + const mesa_format fmt = rb->Format; if (_mesa_get_format_datatype(fmt) == GL_FLOAT) { fb->Visual.floatMode = GL_TRUE; @@ -549,7 +508,7 @@ _mesa_update_framebuffer_visual(struct gl_context *ctx, if (fb->Attachment[BUFFER_DEPTH].Renderbuffer) { const struct gl_renderbuffer *rb = fb->Attachment[BUFFER_DEPTH].Renderbuffer; - const gl_format fmt = rb->Format; + const mesa_format fmt = rb->Format; fb->Visual.haveDepthBuffer = GL_TRUE; fb->Visual.depthBits = _mesa_get_format_bits(fmt, GL_DEPTH_BITS); } @@ -557,7 +516,7 @@ _mesa_update_framebuffer_visual(struct gl_context *ctx, if (fb->Attachment[BUFFER_STENCIL].Renderbuffer) { const struct gl_renderbuffer *rb = fb->Attachment[BUFFER_STENCIL].Renderbuffer; - const gl_format fmt = rb->Format; + const mesa_format fmt = rb->Format; fb->Visual.haveStencilBuffer = GL_TRUE; fb->Visual.stencilBits = _mesa_get_format_bits(fmt, GL_STENCIL_BITS); } @@ -565,7 +524,7 @@ _mesa_update_framebuffer_visual(struct gl_context *ctx, if (fb->Attachment[BUFFER_ACCUM].Renderbuffer) { const struct gl_renderbuffer *rb = fb->Attachment[BUFFER_ACCUM].Renderbuffer; - const gl_format fmt = rb->Format; + const mesa_format fmt = rb->Format; fb->Visual.haveAccumBuffer = GL_TRUE; fb->Visual.accumRedBits = _mesa_get_format_bits(fmt, GL_RED_BITS); fb->Visual.accumGreenBits = _mesa_get_format_bits(fmt, GL_GREEN_BITS); @@ -662,8 +621,8 @@ update_color_read_buffer(struct gl_context *ctx, struct gl_framebuffer *fb) fb->_ColorReadBuffer = NULL; /* legal! */ } else { - ASSERT(fb->_ColorReadBufferIndex >= 0); - ASSERT(fb->_ColorReadBufferIndex < BUFFER_COUNT); + assert(fb->_ColorReadBufferIndex >= 0); + assert(fb->_ColorReadBufferIndex < BUFFER_COUNT); fb->_ColorReadBuffer = fb->Attachment[fb->_ColorReadBufferIndex].Renderbuffer; } @@ -687,7 +646,7 @@ update_color_read_buffer(struct gl_context *ctx, struct gl_framebuffer *fb) static void update_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) { - if (fb->Name == 0) { + if (_mesa_is_winsys_fbo(fb)) { /* This is a window-system framebuffer */ /* Need to update the FB's GL_DRAW_BUFFER state to match the * context state (GL_READ_BUFFER too). @@ -734,6 +693,9 @@ _mesa_update_framebuffer(struct gl_context *ctx) update_framebuffer(ctx, drawFb); if (readFb != drawFb) update_framebuffer(ctx, readFb); + + _mesa_update_clamp_vertex_color(ctx); + _mesa_update_clamp_fragment_color(ctx); } @@ -794,7 +756,7 @@ renderbuffer_exists(struct gl_context *ctx, if (!readBuf) { return GL_FALSE; } - ASSERT(_mesa_get_format_bits(readBuf->Format, GL_RED_BITS) > 0 || + assert(_mesa_get_format_bits(readBuf->Format, GL_RED_BITS) > 0 || _mesa_get_format_bits(readBuf->Format, GL_ALPHA_BITS) > 0 || _mesa_get_format_bits(readBuf->Format, GL_TEXTURE_LUMINANCE_SIZE) > 0 || _mesa_get_format_bits(readBuf->Format, GL_TEXTURE_INTENSITY_SIZE) > 0 || @@ -851,7 +813,6 @@ _mesa_source_buffer_exists(struct gl_context *ctx, GLenum format) /** * As above, but for drawing operations. - * XXX could do some code merging w/ above function. */ GLboolean _mesa_dest_buffer_exists(struct gl_context *ctx, GLenum format) @@ -866,13 +827,31 @@ _mesa_dest_buffer_exists(struct gl_context *ctx, GLenum format) GLenum _mesa_get_color_read_format(struct gl_context *ctx) { - switch (ctx->ReadBuffer->_ColorReadBuffer->Format) { - case MESA_FORMAT_ARGB8888: - return GL_BGRA; - case MESA_FORMAT_RGB565: - return GL_BGR; - default: - return GL_RGBA; + if (!ctx->ReadBuffer || !ctx->ReadBuffer->_ColorReadBuffer) { + /* The spec is unclear how to handle this case, but NVIDIA's + * driver generates GL_INVALID_OPERATION. + */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT: " + "no GL_READ_BUFFER)"); + return GL_NONE; + } + else { + const GLenum format = ctx->ReadBuffer->_ColorReadBuffer->Format; + const GLenum data_type = _mesa_get_format_datatype(format); + + if (format == MESA_FORMAT_B8G8R8A8_UNORM) + return GL_BGRA; + else if (format == MESA_FORMAT_B5G6R5_UNORM) + return GL_BGR; + + switch (data_type) { + case GL_UNSIGNED_INT: + case GL_INT: + return GL_RGBA_INTEGER; + default: + return GL_RGBA; + } } } @@ -883,13 +862,53 @@ _mesa_get_color_read_format(struct gl_context *ctx) GLenum _mesa_get_color_read_type(struct gl_context *ctx) { - switch (ctx->ReadBuffer->_ColorReadBuffer->Format) { - case MESA_FORMAT_ARGB8888: - return GL_UNSIGNED_BYTE; - case MESA_FORMAT_RGB565: - return GL_UNSIGNED_SHORT_5_6_5_REV; - default: - return GL_UNSIGNED_BYTE; + if (!ctx->ReadBuffer || !ctx->ReadBuffer->_ColorReadBuffer) { + /* The spec is unclear how to handle this case, but NVIDIA's + * driver generates GL_INVALID_OPERATION. + */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE: " + "no GL_READ_BUFFER)"); + return GL_NONE; + } + else { + const GLenum format = ctx->ReadBuffer->_ColorReadBuffer->Format; + const GLenum data_type = _mesa_get_format_datatype(format); + + if (format == MESA_FORMAT_B5G6R5_UNORM) + return GL_UNSIGNED_SHORT_5_6_5_REV; + + switch (data_type) { + case GL_SIGNED_NORMALIZED: + return GL_BYTE; + case GL_UNSIGNED_INT: + case GL_INT: + case GL_FLOAT: + return data_type; + case GL_UNSIGNED_NORMALIZED: + default: + return GL_UNSIGNED_BYTE; + } + } +} + + +/** + * Returns the read renderbuffer for the specified format. + */ +struct gl_renderbuffer * +_mesa_get_read_renderbuffer_for_format(const struct gl_context *ctx, + GLenum format) +{ + const struct gl_framebuffer *rfb = ctx->ReadBuffer; + + if (_mesa_is_color_format(format)) { + return rfb->Attachment[rfb->_ColorReadBufferIndex].Renderbuffer; + } else if (_mesa_is_depth_format(format) || + _mesa_is_depthstencil_format(format)) { + return rfb->Attachment[BUFFER_DEPTH].Renderbuffer; + } else { + return rfb->Attachment[BUFFER_STENCIL].Renderbuffer; } } @@ -910,8 +929,7 @@ _mesa_print_framebuffer(const struct gl_framebuffer *fb) for (i = 0; i < BUFFER_COUNT; i++) { const struct gl_renderbuffer_attachment *att = &fb->Attachment[i]; if (att->Type == GL_TEXTURE) { - const struct gl_texture_image *texImage = - _mesa_get_attachment_teximage_const(att); + const struct gl_texture_image *texImage = att->Renderbuffer->TexImage; fprintf(stderr, " %2d: Texture %u, level %u, face %u, slice %u, complete %d\n", i, att->Texture->Name, att->TextureLevel, att->CubeMapFace,