src/libANGLE/renderer/vulkan/gen_vk_internal_shaders.py


Log

Author Commit Date CI Message
Jamie Madill 1f08ab28 2019-10-03T16:22:52 Re-land "GN: Componentize vulkan back-end build." Re-land fixes angle_end2end_tests disabling Vulkan. This moves the build configuration into the Vulkan back-end dir. This should be a little easier to maintain as all Vulkan-related config is in one place. Note that this should not interfere with Skia's build as they do not import the Vulkan back-end sources. One additional possiblity that this enables is testing other compile-time permutations of the Vulkan back-end more easily. For example we could make a simple change to enable compile testing of the Vulkan back-end with custom command buffers disabled. Also fixes a few errors affecting less tested configs. Bug: angleproject:3943 Change-Id: I0161668abcc58fcf529dde120998d4b99445fdd5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1838454 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill 2328d65a 2019-10-03T02:27:07 Revert "GN: Componentize vulkan back-end build." This reverts commit d46e2fb1e341a7ba7da56072658d3b4b1a540077. Reason for revert: Broke Vulkan angle_end2end_tests. Bug: angleproject:3954 Original change's description: > GN: Componentize vulkan back-end build. > > This moves the build configuration into the Vulkan back-end dir. > This should be a little easier to maintain as all Vulkan-related > config is in one place. > > Note that this should not interfere with Skia's build as they do > not import the Vulkan back-end sources. > > One additional possiblity that this enables is testing other > compile-time permutations of the Vulkan back-end more easily. For > example we could make a simple change to enable compile testing > of the Vulkan back-end with custom command buffers disabled. > > Also fixes a few errors affecting less tested configs. > > Bug: angleproject:3943 > Change-Id: Iaf819936896e4f5d3e6415ed16ab0c940e46cdb6 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1829662 > Commit-Queue: Jamie Madill <jmadill@chromium.org> > Reviewed-by: Tobin Ehlis <tobine@google.com> TBR=tobine@google.com,jonahr@google.com,jmadill@chromium.org Change-Id: I7cf3db4f6b7d8b779625ea2491172bb429b498a9 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: angleproject:3943 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1837233 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill d46e2fb1 2019-09-27T16:22:35 GN: Componentize vulkan back-end build. This moves the build configuration into the Vulkan back-end dir. This should be a little easier to maintain as all Vulkan-related config is in one place. Note that this should not interfere with Skia's build as they do not import the Vulkan back-end sources. One additional possiblity that this enables is testing other compile-time permutations of the Vulkan back-end more easily. For example we could make a simple change to enable compile testing of the Vulkan back-end with custom command buffers disabled. Also fixes a few errors affecting less tested configs. Bug: angleproject:3943 Change-Id: Iaf819936896e4f5d3e6415ed16ab0c940e46cdb6 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1829662 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tobin Ehlis <tobine@google.com>
Shahbaz Youssefi 050b124d 2019-06-30T03:26:18 Reland "Vulkan: Debug overlay" This is a reland of e54d0f90d1a165404236fd7abd1b05ddd041a686 This was reverted due to a build failure as a result of a missing virtual destructor in the widget base class. Original change's description: > Vulkan: Debug overlay > > A debug overlay system for the Vulkan backend designed with efficiency > and runtime configurability in mind. Overlay widgets are of two > fundamental types: > > - Text widgets: A single line of text with small, medium or large font. > - Graph widgets: A bar graph of data. > > Built on these, various overlay widget types are defined that gather > statistics. Five such types are defined with one widget per type as > example: > > - Count: A widget that counts something. VulkanValidationMessageCount > is an overlay widget of this type that shows the number of validation > messages received from the validation layers. > - Text: A generic text. VulkanLastValidationMessage is an overlay > widget of this type that shows the last validation message. > - PerSecond: A value that gets reset every second automatically. FPS is > an overlay widget of this type that simply gets incremented on every > swap(). > - RunningGraph: A graph of last N values. VulkanCommandGraphSize is an > overlay of this type. On every vkQueueSubmit, the number of nodes in > the command graph is accumulated. On every present(), the value is > taken as the number of nodes for the whole duration of the frame. > - RunningHistogram: A histogram of last N values. Input values are in > the [0, 1] range and they are ranked to N buckets for histogram > calculation. VulkanSecondaryCommandBufferPoolWaste is an overlay > widget of this type. On vkQueueSubmit, the memory waste from command > buffer pool allocations is recorded in the histogram. > > Overlay font is placed in libANGLE/overlay/ which gen_overlay_fonts.py > processes to create an array of bits, which is processed at runtime to > create the actual font image (an image with 3 layers). > > The overlay widget layout is defined in overlay_widgets.json which > gen_overlay_widgets.py processes to generate an array of widgetss, each > of its respective type, and sets their properties, such as color and > bounding box. The json file allows widgets to align against other > widgets as well as against the framebuffer edges. > > Two compute shaders are implemented to efficiently render the UI: > > - OverlayCull: This shader creates a bitset of Text and Graph widgets > whose bounding boxes intersect a corresponding subgroup processed by > OverlayDraw. This is done only when the enabled overlay widgets are > changed (a feature that is not yet implemented) or the surface is > resized. > - OverlayDraw: Using the bitsets generated by OverlayCull, values that > are uniform for each workgroup (set to be equal to hardware subgroup > size), this shader loops over enabled widgets that can possibly > intersect the pixel being processed and renders and blends in texts > and graphs. This is done once per frame on present(). > > Currently, to enable overlay widgets an environment variable is used. > For example: > > $ export ANGLE_OVERLAY=FPS:VulkanSecondaryCommandBufferPoolWaste > $ ./hello_triangle --use-angle=vulkan > > Possible future work: > > - On Android, add settings in developer options and enable widgets based > on those. > - Spawn a small server in ANGLE and write an application that sends > enable/disable commands remotely. > - Implement overlay for other backends. > > Bug: angleproject:3757 > Change-Id: If9c6974d1935c18f460ec569e79b41188bd7afcc > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1729440 > Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> > Reviewed-by: Jamie Madill <jmadill@chromium.org> Bug: angleproject:3757 Change-Id: I47915d88b37b6f882c686c2de13fca309a10b572 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1780897 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Corentin Wallez fc58af47 2019-09-02T07:46:44 Revert "Vulkan: Debug overlay" This reverts commit e54d0f90d1a165404236fd7abd1b05ddd041a686. Reason for revert: causes compile failure on Linux CFI bot. Sample build: https://ci.chromium.org/p/chromium/builders/ci/Linux%20CFI/14810 Sample log: https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket.appspot.com/8903575125463586160/+/steps/compile/0/stdout?format=raw Original change's description: > Vulkan: Debug overlay > > A debug overlay system for the Vulkan backend designed with efficiency > and runtime configurability in mind. Overlay widgets are of two > fundamental types: > > - Text widgets: A single line of text with small, medium or large font. > - Graph widgets: A bar graph of data. > > Built on these, various overlay widget types are defined that gather > statistics. Five such types are defined with one widget per type as > example: > > - Count: A widget that counts something. VulkanValidationMessageCount > is an overlay widget of this type that shows the number of validation > messages received from the validation layers. > - Text: A generic text. VulkanLastValidationMessage is an overlay > widget of this type that shows the last validation message. > - PerSecond: A value that gets reset every second automatically. FPS is > an overlay widget of this type that simply gets incremented on every > swap(). > - RunningGraph: A graph of last N values. VulkanCommandGraphSize is an > overlay of this type. On every vkQueueSubmit, the number of nodes in > the command graph is accumulated. On every present(), the value is > taken as the number of nodes for the whole duration of the frame. > - RunningHistogram: A histogram of last N values. Input values are in > the [0, 1] range and they are ranked to N buckets for histogram > calculation. VulkanSecondaryCommandBufferPoolWaste is an overlay > widget of this type. On vkQueueSubmit, the memory waste from command > buffer pool allocations is recorded in the histogram. > > Overlay font is placed in libANGLE/overlay/ which gen_overlay_fonts.py > processes to create an array of bits, which is processed at runtime to > create the actual font image (an image with 3 layers). > > The overlay widget layout is defined in overlay_widgets.json which > gen_overlay_widgets.py processes to generate an array of widgetss, each > of its respective type, and sets their properties, such as color and > bounding box. The json file allows widgets to align against other > widgets as well as against the framebuffer edges. > > Two compute shaders are implemented to efficiently render the UI: > > - OverlayCull: This shader creates a bitset of Text and Graph widgets > whose bounding boxes intersect a corresponding subgroup processed by > OverlayDraw. This is done only when the enabled overlay widgets are > changed (a feature that is not yet implemented) or the surface is > resized. > - OverlayDraw: Using the bitsets generated by OverlayCull, values that > are uniform for each workgroup (set to be equal to hardware subgroup > size), this shader loops over enabled widgets that can possibly > intersect the pixel being processed and renders and blends in texts > and graphs. This is done once per frame on present(). > > Currently, to enable overlay widgets an environment variable is used. > For example: > > $ export ANGLE_OVERLAY=FPS:VulkanSecondaryCommandBufferPoolWaste > $ ./hello_triangle --use-angle=vulkan > > Possible future work: > > - On Android, add settings in developer options and enable widgets based > on those. > - Spawn a small server in ANGLE and write an application that sends > enable/disable commands remotely. > - Implement overlay for other backends. > > Bug: angleproject:3757 > Change-Id: If9c6974d1935c18f460ec569e79b41188bd7afcc > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1729440 > Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> > Reviewed-by: Jamie Madill <jmadill@chromium.org> TBR=geofflang@chromium.org,syoussefi@chromium.org,jmadill@chromium.org Bug: angleproject:3757 Change-Id: Ib08e2e7b1a9449ca097673acb11655df5d2bbf31 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1778862 Commit-Queue: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Shahbaz Youssefi e54d0f90 2019-06-30T03:26:18 Vulkan: Debug overlay A debug overlay system for the Vulkan backend designed with efficiency and runtime configurability in mind. Overlay widgets are of two fundamental types: - Text widgets: A single line of text with small, medium or large font. - Graph widgets: A bar graph of data. Built on these, various overlay widget types are defined that gather statistics. Five such types are defined with one widget per type as example: - Count: A widget that counts something. VulkanValidationMessageCount is an overlay widget of this type that shows the number of validation messages received from the validation layers. - Text: A generic text. VulkanLastValidationMessage is an overlay widget of this type that shows the last validation message. - PerSecond: A value that gets reset every second automatically. FPS is an overlay widget of this type that simply gets incremented on every swap(). - RunningGraph: A graph of last N values. VulkanCommandGraphSize is an overlay of this type. On every vkQueueSubmit, the number of nodes in the command graph is accumulated. On every present(), the value is taken as the number of nodes for the whole duration of the frame. - RunningHistogram: A histogram of last N values. Input values are in the [0, 1] range and they are ranked to N buckets for histogram calculation. VulkanSecondaryCommandBufferPoolWaste is an overlay widget of this type. On vkQueueSubmit, the memory waste from command buffer pool allocations is recorded in the histogram. Overlay font is placed in libANGLE/overlay/ which gen_overlay_fonts.py processes to create an array of bits, which is processed at runtime to create the actual font image (an image with 3 layers). The overlay widget layout is defined in overlay_widgets.json which gen_overlay_widgets.py processes to generate an array of widgetss, each of its respective type, and sets their properties, such as color and bounding box. The json file allows widgets to align against other widgets as well as against the framebuffer edges. Two compute shaders are implemented to efficiently render the UI: - OverlayCull: This shader creates a bitset of Text and Graph widgets whose bounding boxes intersect a corresponding subgroup processed by OverlayDraw. This is done only when the enabled overlay widgets are changed (a feature that is not yet implemented) or the surface is resized. - OverlayDraw: Using the bitsets generated by OverlayCull, values that are uniform for each workgroup (set to be equal to hardware subgroup size), this shader loops over enabled widgets that can possibly intersect the pixel being processed and renders and blends in texts and graphs. This is done once per frame on present(). Currently, to enable overlay widgets an environment variable is used. For example: $ export ANGLE_OVERLAY=FPS:VulkanSecondaryCommandBufferPoolWaste $ ./hello_triangle --use-angle=vulkan Possible future work: - On Android, add settings in developer options and enable widgets based on those. - Spawn a small server in ANGLE and write an application that sends enable/disable commands remotely. - Implement overlay for other backends. Bug: angleproject:3757 Change-Id: If9c6974d1935c18f460ec569e79b41188bd7afcc Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1729440 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi 0a3c8246 2019-08-15T13:24:20 Vulkan: Write preprocessed shaders with // instead of #if 0 Bug: 993965 Change-Id: I4fd357bdebc73b7256ae4b34bd1c6aa2f4418e27 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1756503 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Jamie Madill bd203b57 2019-08-08T17:25:45 Vulkan: Correct generated shader paths. This was showing up as a GN error with a newer version of GN. Bug: angleproject:3792 Change-Id: I1993ccfe079c1768217f704cc9ba036ec67024bf Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1745226 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
James Dong 0d3cf708 2019-06-12T10:07:02 Vulkan: fix array size for internal shaders Previously array sizes were calculated as the OR of all flag and enum masks, equal to 2^(number of bits used for flags and enums) - 1, which could be less than the actual needed array size. This fix moves array size calculation to the autogen script and changes the size to one more than the maximum potential value. Bug: angleproject:3524 Change-Id: Ia4eb2a83fc7deea84e18958efcda8b57632035f9 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1655954 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi f2a1c384 2019-05-21T16:32:49 Vulkan: Implement multisampled framebuffers Simultaneously implements ANGLE_framebuffer_multisample and ES3 multisampled framebuffers. Additionally, implements ES3 framebuffer blitting where multisampled framebuffers are involved. Bug: angleproject:3203 Bug: angleproject:3204 Bug: angleproject:3200 Change-Id: I5694a30f71168e807688a9568e3742b81d907918 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1622667 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Geoff Lang d7d42395 2019-05-06T13:15:35 Format all of ANGLE's python code. BUG=angleproject:3421 Change-Id: I1d7282ac513c046de5d8ed87f7789290780d30a6 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1595440 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>
Shahbaz Youssefi fc15ae55 2019-04-08T23:32:32 Vulkan: parallelize internal shader compilation As glslang is rolling frequently now, internal shaders frequently require recompilation. This change parallelizes shader compilation to speed up this process. Bug: angleproject:3333 Change-Id: Icace083559bff73dfb9b5fe7cc2c59ce8137a2dc Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1558680 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi 82418c82 2019-04-05T15:56:03 Add support for updating glslang_validator binary from Linux. Updates the glslang_validator binary for Linux in the same commit. Bug: angleproject:3333 Change-Id: Ide42781ec4951e7c09307a0a3b96c36c6ea29d23 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1553828 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill d5ff4fad 2019-04-08T09:25:23 Add standalone glslang_validator as a download hook. This change allows us to download a copy of the standalone glslang validator during gclient runhooks. This decouples run_code_generation from the version of glslang stored in source tree. This prevents the error where a developer would run into a code generation conflict due to a change in version of glslang. Currently only the Windows version is stored in the tree. A follow-up CL will add Linux. The validator will only initially support Windows or Linux. Documentation for the script is located in tools/glslang/README.md. This CL also updates the Vulkan shader generation script to use the new binary for Windows. Bug: angleproject:3333 Change-Id: Ia6146a283a2bcfdf84c42411d6b5d8bae136bf1b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1553823 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Jamie Madill 04e9e559 2019-04-01T14:40:21 Use revision.h for glslang dirty checks. This file changes a lot less than git HEAD. And it should guard against the same changes. Should reduce the instances of developer confusion regarding run_code_generation being out of data. Also update the presubmit check to print a more helpful message in the case where the code does need to be regenerated. Bug: angleproject:3333 Change-Id: I190dab5be50fc42512bdfc11c2d200f34f3b2092 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1545123 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Jonah Ryan-Davis 9e586a0f 2019-03-21T14:24:11 Prevent vk shader generator from using anything but ANGLE's out. If ANGLE is inside some other repo but hasn't been built yet, the shader generator will continue to look for out dirs inside parent repos. Should only look within the ANGLE repo. Bug: angleproject:3227 Change-Id: I084414f99eb3db71fe2c7ee4e59206b59f077a5a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1534462 Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
Jonah Ryan-Davis 3a0e5beb 2019-03-20T17:39:51 run_code_generation.py should fail more gracefully on find out dir. The script checks a series of conditions, but only fails gracefully if the first condition fails. If other conditions fails, it will not retry or output an error message. Bug: angleproject:3227 Change-Id: Ibb47c2bb1eac90f61f01d87a5051af182816bcad Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1533063 Commit-Queue: Jonah Ryan-Davis <jonahr@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Jamie Madill a532570a 2019-03-20T10:18:36 Vulkan: Cleanups to shader generation script. Fixes the suprious newlines messages. Also prefer a Release directory when writing shaders for performance. Also adds glslang's git HEAD to the list of generated hashes. This should ensure we regenerate all shaders when there's a roll of glslang. Glslang was rolled prior to this CL. Also update the SPRI-V libs. Bug: angleproject:3227 Change-Id: I1fd212a08000c08ef41b60c4201edd3ac771f91d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1516512 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill 0f34f3f2 2019-03-11T10:18:57 Use auto_script in run_code_generation. Cleans up the generator scripts to prepare for listing outputs in the generated hashes file. Also reorganizes the scripts somewhat to make them a bit more maintainable. Bug: angleproject:3227 Change-Id: If40946c2004941d3f6cd51d5521c7db8cc0b52df Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1512052 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi 149eb33b 2018-12-08T14:53:49 Vulkan: add possibility to build subset of shaders As the number of internal shaders grow, it's helpful in development time to be able to build variations of a specific shader, instead of building everything every time. With this commit, one can do: $ python gen_vk_internal_shaders.py SubString which will result in compilation of shaders whose name matches the glob *SubString*. Bug: angleproject:2958 Change-Id: I3b18d7e32e2ec4317531a7655eb2c6148cea177b Reviewed-on: https://chromium-review.googlesource.com/c/1369285 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Shahbaz Youssefi 5c4af666 2018-12-07T06:31:00 Vulkan: unix line endings in generated shaders Bug: angleproject:3007 Change-Id: I466caa92ae337508ae284b6fb8d38f5fa3ea1042 Reviewed-on: https://chromium-review.googlesource.com/c/1366796 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Jamie Madill 7c985f5c 2018-11-29T18:16:17 Make angle::Result an enum. This moves away from a class type to a value type. This should improve performance when using angle::Result as a return value. Previously the generated code would return a pointer instead of a value. Improves performance in the most targeted microbenchmark by 10%. In more realistic scanarios it will have a smaller improvement. Also simplifies the class implementation and usage. Includes some unrelated code generation changes. Bug: angleproject:2491 Change-Id: Ifcf86870bf1c00a2f73c39ea6e4f05ca705050aa Reviewed-on: https://chromium-review.googlesource.com/c/1356139 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi df8c1053 2018-11-29T11:49:45 Vulkan: Uber-shader generated code optimization Refactors code out of generated functions into a common function and simplifies assertions. Bug: angleproject:2958 Change-Id: I896c2304c3ac1e043c16f9ecf81fa8b72a6b87c0 Reviewed-on: https://chromium-review.googlesource.com/c/1355501 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi a1442ecd 2018-11-26T12:48:10 Vulkan: Uber-shader support For each internal shader, there is now possibly a companion .json file that defines shader variations. The variations consist of a set of flags and a set of enums. Each enum defines a variation that takes one of a few values. Flags are shorthands for 2-value enums. In the shader code, #if can be used to change the shader based on variations derived from flags and enums. On the C++ side, those variations are combined into an index and the appropriate shader is retrieved from a table. Bug: angleproject:2958 Change-Id: Ic4fc7061adb20c047c26624305285e3005092aab Reviewed-on: https://chromium-review.googlesource.com/c/1351117 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Jamie Madill d47044ad 2018-04-27T11:45:03 Vulkan: Add framework for internal shaders. Vulkan intenal shaders are stored in a ShaderLibrary, and this is owned by the RendererVk. This way the shaders are reused between all the different Contexts. They are initialized lazily to keep init time low. They also have an associated Serial (called a ProgramSerial) so they can be identified in a PipelineDesc (used by the Pipeline cache). We use a python script to build and invoke the glslang validator, that also produces SPIR-V binary code snippets. These snippets are gathered into an auto-generated file that is exposed via an auto-generated header file. The InternalShaderID enum class gives access to the internal shaders that are shared through the Vulkan back-end. This also adds simple clear shaders to be used in masked color clears. The patch doesn't add any functionality but it is split off from the color clear functionality to keep the code size down. Bug: angleproject:2339 Bug: angleproject:2455 Change-Id: Ie83043eda217c9f013817b198c92a3b7ba0878b4 Reviewed-on: https://chromium-review.googlesource.com/1031372 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>