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Add clipping, backbuffer, and CanvasGroups to 2D GLES3 renderer

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As well as significant consequent cleanup in the RenderTarget, Texture, and Canvas renderer code
This commit is contained in:
clayjohn
2022-05-18 08:04:41 -07:00
parent d81c5eab8c
commit 3e20c1347d
27 changed files with 734 additions and 1173 deletions
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drivers/gles3/storage/config.cpp
+10 -58
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@@ -55,82 +55,34 @@ Config::Config() {
}
}
keep_original_textures = true; // false
depth_internalformat = GL_DEPTH_COMPONENT;
depth_type = GL_UNSIGNED_INT;
srgb_decode_supported = extensions.has("GL_EXT_texture_sRGB_decode");
etc2_supported = true;
bptc_supported = extensions.has("GL_ARB_texture_compression_bptc") || extensions.has("EXT_texture_compression_bptc");
#ifdef GLES_OVER_GL
float_texture_supported = true;
etc2_supported = false;
s3tc_supported = true;
etc_supported = false; // extensions.has("GL_OES_compressed_ETC1_RGB8_texture");
bptc_supported = extensions.has("GL_ARB_texture_compression_bptc") || extensions.has("EXT_texture_compression_bptc");
rgtc_supported = extensions.has("GL_EXT_texture_compression_rgtc") || extensions.has("GL_ARB_texture_compression_rgtc") || extensions.has("EXT_texture_compression_rgtc");
support_npot_repeat_mipmap = true;
depth_buffer_internalformat = GL_DEPTH_COMPONENT24;
rgtc_supported = true; //RGTC - core since OpenGL version 3.0
#else
float_texture_supported = extensions.has("GL_ARB_texture_float") || extensions.has("GL_OES_texture_float");
s3tc_supported = extensions.has("GL_EXT_texture_compression_s3tc") || extensions.has("WEBGL_compressed_texture_s3tc");
etc_supported = extensions.has("GL_OES_compressed_ETC1_RGB8_texture") || extensions.has("WEBGL_compressed_texture_etc1");
bptc_supported = false;
rgtc_supported = false;
support_npot_repeat_mipmap = extensions.has("GL_OES_texture_npot");
#ifdef JAVASCRIPT_ENABLED
// RenderBuffer internal format must be 16 bits in WebGL,
// but depth_texture should default to 32 always
// if the implementation doesn't support 32, it should just quietly use 16 instead
// https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/
depth_buffer_internalformat = GL_DEPTH_COMPONENT16;
depth_type = GL_UNSIGNED_INT;
#else
// on mobile check for 24 bit depth support for RenderBufferStorage
if (extensions.has("GL_OES_depth24")) {
depth_buffer_internalformat = _DEPTH_COMPONENT24_OES;
depth_type = GL_UNSIGNED_INT;
} else {
depth_buffer_internalformat = GL_DEPTH_COMPONENT16;
depth_type = GL_UNSIGNED_SHORT;
}
#endif
etc2_supported = true;
s3tc_supported = extensions.has("GL_EXT_texture_compression_dxt1") || extensions.has("GL_EXT_texture_compression_s3tc") || extensions.has("WEBGL_compressed_texture_s3tc");
rgtc_supported = extensions.has("GL_EXT_texture_compression_rgtc") || extensions.has("GL_ARB_texture_compression_rgtc") || extensions.has("EXT_texture_compression_rgtc");
#endif
#ifdef GLES_OVER_GL
use_rgba_2d_shadows = false;
use_rgba_3d_shadows = false;
support_depth_cubemaps = true;
#else
use_rgba_2d_shadows = !(float_texture_supported && extensions.has("GL_EXT_texture_rg"));
use_rgba_3d_shadows = false;
support_depth_cubemaps = extensions.has("GL_OES_depth_texture_cube_map");
#endif
#ifdef GLES_OVER_GL
support_32_bits_indices = true;
#else
support_32_bits_indices = extensions.has("GL_OES_element_index_uint");
#endif
glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &max_vertex_texture_image_units);
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &max_texture_image_units);
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size);
glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &max_uniform_buffer_size);
#ifdef GLES_OVER_GL
support_write_depth = true;
#elif defined(JAVASCRIPT_ENABLED)
support_write_depth = false;
#else
support_write_depth = extensions.has("GL_EXT_frag_depth");
#endif
//picky requirements for these
support_shadow_cubemaps = support_write_depth && support_depth_cubemaps;
// the use skeleton software path should be used if either float texture is not supported,
// OR max_vertex_texture_image_units is zero
use_skeleton_software = (float_texture_supported == false) || (max_vertex_texture_image_units == 0);
glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &max_vertex_texture_image_units);
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &max_texture_image_units);
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size);
glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &max_uniform_buffer_size);
support_anisotropic_filter = extensions.has("GL_EXT_texture_filter_anisotropic");
if (support_anisotropic_filter) {
glGetFloatv(_GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &anisotropic_level);