Nothing reads from textures or storage buffers in vertex shaders since
hardware tessellation was removed. Drop what was left for it: the
vertexTexture flag of VulkanTexture::EndCreate (always false), the
STORAGE_BUFFER_VERTEX binding type, GL's maxVertexTextureUnits, and the
tesselationShaderSupported cap, which nothing read (and which was always
false, since the feature was never enabled).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
With the default -1..1, window depth 0 comes from z = -w, where the
rasterizer's rounding is an ulp of 1.0. Puyo Puyo Fever 2's ground at z = 0
got depths just above 0 with depth clamp on, and the sprites on it that test
GEQUAL lost pixels (910 px off the PSP on an Adreno 840, now 0). Use
glClipControl (GL 4.5, ARB/EXT_clip_control) as in Vulkan. Not in libretro,
where the frontend shares the context.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Add detection for GL_EXT_disjoint_timer_query (OpenGL ES) and
GL_ARB_timer_query (desktop GL) extensions. These extensions provide
GPU timestamp queries for profiling render pass durations.
Also adds function pointer declarations for glQueryCounter,
glGetQueryObjecti64v, and glGetQueryObjectui64v.
Signed-off-by: Chris Healy <cphealy@gmail.com>
