emulator: opengl: Back-port GLES emulation from the master tree.
The modules here are only built when BUILD_EMULATOR_OPENGL is defined to true in your environment or your BoardConfig.mk (see tools/emulator/opengl/Android.mk) Change-Id: I5f32c35b4452fb5a7b4d5f9fc5870ec1da6032e6
This commit is contained in:
David 'Digit' Turner
450
tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp
Normal file
450
tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp
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@@ -0,0 +1,450 @@
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "glUtils.h"
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#include <string.h>
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#include "ErrorLog.h"
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size_t glSizeof(GLenum type)
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{
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size_t retval = 0;
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switch(type) {
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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retval = 1;
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break;
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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case GL_HALF_FLOAT_OES:
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retval = 2;
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break;
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case GL_INT:
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case GL_FLOAT:
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case GL_FIXED:
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case GL_BOOL:
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retval = 4;
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break;
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#ifdef GL_DOUBLE
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case GL_DOUBLE:
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retval = 8;
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break;
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#endif
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case GL_FLOAT_VEC2:
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case GL_INT_VEC2:
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case GL_BOOL_VEC2:
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retval = 8;
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break;
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case GL_INT_VEC3:
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case GL_BOOL_VEC3:
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case GL_FLOAT_VEC3:
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retval = 12;
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break;
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case GL_FLOAT_VEC4:
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case GL_BOOL_VEC4:
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case GL_INT_VEC4:
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case GL_FLOAT_MAT2:
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retval = 16;
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break;
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case GL_FLOAT_MAT3:
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retval = 36;
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break;
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case GL_FLOAT_MAT4:
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retval = 64;
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break;
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case GL_SAMPLER_2D:
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case GL_SAMPLER_CUBE:
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retval = 4;
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break;
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default:
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ERR("**** ERROR unknown type 0x%x (%s,%d)\n", type, __FUNCTION__,__LINE__);
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}
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return retval;
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}
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size_t glUtilsParamSize(GLenum param)
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{
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size_t s = 0;
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switch(param)
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{
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case GL_DEPTH_FUNC:
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case GL_DEPTH_BITS:
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case GL_MAX_CLIP_PLANES:
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case GL_GREEN_BITS:
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case GL_MAX_MODELVIEW_STACK_DEPTH:
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case GL_MAX_PROJECTION_STACK_DEPTH:
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case GL_MAX_TEXTURE_STACK_DEPTH:
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case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
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case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
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case GL_NUM_COMPRESSED_TEXTURE_FORMATS:
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case GL_MAX_TEXTURE_SIZE:
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case GL_TEXTURE_GEN_MODE_OES:
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case GL_TEXTURE_ENV_MODE:
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case GL_FOG_MODE:
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case GL_FOG_DENSITY:
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case GL_FOG_START:
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case GL_FOG_END:
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case GL_SPOT_EXPONENT:
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case GL_CONSTANT_ATTENUATION:
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case GL_LINEAR_ATTENUATION:
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case GL_QUADRATIC_ATTENUATION:
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case GL_SHININESS:
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case GL_LIGHT_MODEL_TWO_SIDE:
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case GL_POINT_SIZE:
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case GL_POINT_SIZE_MIN:
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case GL_POINT_SIZE_MAX:
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case GL_POINT_FADE_THRESHOLD_SIZE:
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case GL_CULL_FACE_MODE:
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case GL_FRONT_FACE:
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case GL_SHADE_MODEL:
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case GL_DEPTH_WRITEMASK:
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case GL_DEPTH_CLEAR_VALUE:
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case GL_STENCIL_FAIL:
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case GL_STENCIL_PASS_DEPTH_FAIL:
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case GL_STENCIL_PASS_DEPTH_PASS:
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case GL_STENCIL_REF:
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case GL_STENCIL_WRITEMASK:
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case GL_MATRIX_MODE:
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case GL_MODELVIEW_STACK_DEPTH:
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case GL_PROJECTION_STACK_DEPTH:
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case GL_TEXTURE_STACK_DEPTH:
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case GL_ALPHA_TEST_FUNC:
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case GL_ALPHA_TEST_REF:
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case GL_ALPHA_TEST:
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case GL_BLEND_DST:
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case GL_BLEND_SRC:
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case GL_BLEND:
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case GL_LOGIC_OP_MODE:
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case GL_SCISSOR_TEST:
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case GL_MAX_TEXTURE_UNITS:
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case GL_ACTIVE_TEXTURE:
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case GL_ALPHA_BITS:
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case GL_ARRAY_BUFFER_BINDING:
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case GL_BLUE_BITS:
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case GL_CLIENT_ACTIVE_TEXTURE:
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case GL_CLIP_PLANE0:
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case GL_CLIP_PLANE1:
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case GL_CLIP_PLANE2:
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case GL_CLIP_PLANE3:
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case GL_CLIP_PLANE4:
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case GL_CLIP_PLANE5:
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case GL_COLOR_ARRAY:
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case GL_COLOR_ARRAY_BUFFER_BINDING:
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case GL_COLOR_ARRAY_SIZE:
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case GL_COLOR_ARRAY_STRIDE:
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case GL_COLOR_ARRAY_TYPE:
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case GL_COLOR_LOGIC_OP:
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case GL_COLOR_MATERIAL:
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case GL_PACK_ALIGNMENT:
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case GL_PERSPECTIVE_CORRECTION_HINT:
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case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
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case GL_POINT_SIZE_ARRAY_STRIDE_OES:
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case GL_POINT_SIZE_ARRAY_TYPE_OES:
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case GL_POINT_SMOOTH:
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case GL_POINT_SMOOTH_HINT:
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case GL_POINT_SPRITE_OES:
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case GL_COORD_REPLACE_OES:
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case GL_COMBINE_ALPHA:
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case GL_SRC0_RGB:
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case GL_SRC1_RGB:
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case GL_SRC2_RGB:
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case GL_OPERAND0_RGB:
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case GL_OPERAND1_RGB:
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case GL_OPERAND2_RGB:
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case GL_SRC0_ALPHA:
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case GL_SRC1_ALPHA:
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case GL_SRC2_ALPHA:
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case GL_OPERAND0_ALPHA:
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case GL_OPERAND1_ALPHA:
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case GL_OPERAND2_ALPHA:
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case GL_RGB_SCALE:
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case GL_ALPHA_SCALE:
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case GL_COMBINE_RGB:
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case GL_POLYGON_OFFSET_FACTOR:
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case GL_POLYGON_OFFSET_FILL:
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case GL_POLYGON_OFFSET_UNITS:
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case GL_RED_BITS:
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case GL_RESCALE_NORMAL:
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case GL_SAMPLE_ALPHA_TO_COVERAGE:
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case GL_SAMPLE_ALPHA_TO_ONE:
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case GL_SAMPLE_BUFFERS:
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case GL_SAMPLE_COVERAGE:
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case GL_SAMPLE_COVERAGE_INVERT:
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case GL_SAMPLE_COVERAGE_VALUE:
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case GL_SAMPLES:
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case GL_STENCIL_BITS:
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case GL_STENCIL_CLEAR_VALUE:
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case GL_STENCIL_FUNC:
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case GL_STENCIL_TEST:
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case GL_STENCIL_VALUE_MASK:
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case GL_STENCIL_BACK_FUNC:
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case GL_STENCIL_BACK_VALUE_MASK:
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case GL_STENCIL_BACK_REF:
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case GL_STENCIL_BACK_FAIL:
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case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
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case GL_STENCIL_BACK_PASS_DEPTH_PASS:
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case GL_STENCIL_BACK_WRITEMASK:
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case GL_TEXTURE_2D:
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case GL_TEXTURE_BINDING_2D:
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case GL_TEXTURE_BINDING_CUBE_MAP:
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case GL_TEXTURE_BINDING_EXTERNAL_OES:
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case GL_TEXTURE_COORD_ARRAY:
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case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING:
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case GL_TEXTURE_COORD_ARRAY_SIZE:
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case GL_TEXTURE_COORD_ARRAY_STRIDE:
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case GL_TEXTURE_COORD_ARRAY_TYPE:
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case GL_UNPACK_ALIGNMENT:
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case GL_VERTEX_ARRAY:
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case GL_VERTEX_ARRAY_BUFFER_BINDING:
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case GL_VERTEX_ARRAY_SIZE:
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case GL_VERTEX_ARRAY_STRIDE:
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case GL_VERTEX_ARRAY_TYPE:
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case GL_SPOT_CUTOFF:
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case GL_TEXTURE_MIN_FILTER:
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case GL_TEXTURE_MAG_FILTER:
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case GL_TEXTURE_WRAP_S:
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case GL_TEXTURE_WRAP_T:
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case GL_GENERATE_MIPMAP:
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case GL_GENERATE_MIPMAP_HINT:
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case GL_RENDERBUFFER_WIDTH_OES:
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case GL_RENDERBUFFER_HEIGHT_OES:
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case GL_RENDERBUFFER_INTERNAL_FORMAT_OES:
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case GL_RENDERBUFFER_RED_SIZE_OES:
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case GL_RENDERBUFFER_GREEN_SIZE_OES:
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case GL_RENDERBUFFER_BLUE_SIZE_OES:
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case GL_RENDERBUFFER_ALPHA_SIZE_OES:
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case GL_RENDERBUFFER_DEPTH_SIZE_OES:
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case GL_RENDERBUFFER_STENCIL_SIZE_OES:
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case GL_RENDERBUFFER_BINDING:
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case GL_FRAMEBUFFER_BINDING:
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case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_OES:
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case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_OES:
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case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_OES:
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case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_OES:
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case GL_FENCE_STATUS_NV:
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case GL_FENCE_CONDITION_NV:
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case GL_TEXTURE_WIDTH_QCOM:
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case GL_TEXTURE_HEIGHT_QCOM:
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case GL_TEXTURE_DEPTH_QCOM:
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case GL_TEXTURE_INTERNAL_FORMAT_QCOM:
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case GL_TEXTURE_FORMAT_QCOM:
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case GL_TEXTURE_TYPE_QCOM:
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case GL_TEXTURE_IMAGE_VALID_QCOM:
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case GL_TEXTURE_NUM_LEVELS_QCOM:
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case GL_TEXTURE_TARGET_QCOM:
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case GL_TEXTURE_OBJECT_VALID_QCOM:
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case GL_BLEND_EQUATION_RGB_OES:
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case GL_BLEND_EQUATION_ALPHA_OES:
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case GL_BLEND_DST_RGB_OES:
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case GL_BLEND_SRC_RGB_OES:
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case GL_BLEND_DST_ALPHA_OES:
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case GL_BLEND_SRC_ALPHA_OES:
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case GL_MAX_LIGHTS:
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case GL_SHADER_TYPE:
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case GL_DELETE_STATUS:
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case GL_COMPILE_STATUS:
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case GL_INFO_LOG_LENGTH:
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case GL_SHADER_SOURCE_LENGTH:
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case GL_CURRENT_PROGRAM:
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case GL_LINK_STATUS:
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case GL_VALIDATE_STATUS:
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case GL_ATTACHED_SHADERS:
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case GL_ACTIVE_UNIFORMS:
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case GL_ACTIVE_ATTRIBUTES:
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case GL_SUBPIXEL_BITS:
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case GL_MAX_CUBE_MAP_TEXTURE_SIZE:
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case GL_NUM_SHADER_BINARY_FORMATS:
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case GL_SHADER_COMPILER:
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case GL_MAX_VERTEX_ATTRIBS:
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case GL_MAX_VERTEX_UNIFORM_VECTORS:
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case GL_MAX_VARYING_VECTORS:
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case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
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case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
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case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
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case GL_MAX_RENDERBUFFER_SIZE:
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case GL_MAX_TEXTURE_IMAGE_UNITS:
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case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
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case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
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case GL_LINE_WIDTH:
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s = 1;
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break;
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case GL_ALIASED_LINE_WIDTH_RANGE:
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case GL_ALIASED_POINT_SIZE_RANGE:
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case GL_DEPTH_RANGE:
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case GL_MAX_VIEWPORT_DIMS:
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case GL_SMOOTH_POINT_SIZE_RANGE:
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case GL_SMOOTH_LINE_WIDTH_RANGE:
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s= 2;
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break;
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case GL_SPOT_DIRECTION:
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case GL_POINT_DISTANCE_ATTENUATION:
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case GL_CURRENT_NORMAL:
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s = 3;
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break;
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case GL_CURRENT_VERTEX_ATTRIB:
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case GL_CURRENT_TEXTURE_COORDS:
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case GL_CURRENT_COLOR:
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case GL_FOG_COLOR:
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case GL_AMBIENT:
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case GL_DIFFUSE:
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case GL_SPECULAR:
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case GL_EMISSION:
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case GL_POSITION:
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case GL_LIGHT_MODEL_AMBIENT:
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case GL_TEXTURE_ENV_COLOR:
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case GL_SCISSOR_BOX:
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case GL_VIEWPORT:
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case GL_TEXTURE_CROP_RECT_OES:
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case GL_COLOR_CLEAR_VALUE:
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case GL_COLOR_WRITEMASK:
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case GL_AMBIENT_AND_DIFFUSE:
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case GL_BLEND_COLOR:
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s = 4;
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break;
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case GL_MODELVIEW_MATRIX:
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case GL_PROJECTION_MATRIX:
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case GL_TEXTURE_MATRIX:
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s = 16;
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break;
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default:
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ERR("glUtilsParamSize: unknow param 0x%08x\n", param);
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s = 1; // assume 1
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}
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return s;
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}
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void glUtilsPackPointerData(unsigned char *dst, unsigned char *src,
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int size, GLenum type, unsigned int stride,
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unsigned int datalen)
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{
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unsigned int vsize = size * glSizeof(type);
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if (stride == 0) stride = vsize;
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if (stride == vsize) {
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memcpy(dst, src, datalen);
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} else {
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for (unsigned int i = 0; i < datalen; i += vsize) {
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memcpy(dst, src, vsize);
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dst += vsize;
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src += stride;
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}
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}
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}
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int glUtilsPixelBitSize(GLenum format, GLenum type)
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{
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int components = 0;
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int componentsize = 0;
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int pixelsize = 0;
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switch(type) {
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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componentsize = 8;
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break;
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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case GL_UNSIGNED_SHORT_5_6_5:
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case GL_UNSIGNED_SHORT_4_4_4_4:
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case GL_UNSIGNED_SHORT_5_5_5_1:
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case GL_RGB565_OES:
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case GL_RGB5_A1_OES:
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case GL_RGBA4_OES:
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pixelsize = 16;
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break;
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case GL_INT:
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case GL_UNSIGNED_INT:
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case GL_FLOAT:
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case GL_FIXED:
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case GL_UNSIGNED_INT_24_8_OES:
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pixelsize = 32;
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break;
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default:
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ERR("glUtilsPixelBitSize: unknown pixel type - assuming pixel data 0\n");
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componentsize = 0;
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}
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if (pixelsize == 0) {
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switch(format) {
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#if 0
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case GL_RED:
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case GL_GREEN:
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case GL_BLUE:
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#endif
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case GL_ALPHA:
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case GL_LUMINANCE:
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case GL_DEPTH_COMPONENT:
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case GL_DEPTH_STENCIL_OES:
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components = 1;
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break;
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case GL_LUMINANCE_ALPHA:
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components = 2;
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break;
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case GL_RGB:
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#if 0
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case GL_BGR:
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#endif
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components = 3;
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break;
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case GL_RGBA:
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case GL_BGRA_EXT:
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components = 4;
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break;
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default:
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ERR("glUtilsPixelBitSize: unknown pixel format...\n");
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components = 0;
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}
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pixelsize = components * componentsize;
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}
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return pixelsize;
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}
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// pack a list of strings into one.
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void glUtilsPackStrings(char *ptr, char **strings, GLint *length, GLsizei count)
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{
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char *p = ptr;
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*p = '\0';
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for (int i = 0; i < count; i++) {
|
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int l=0;
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if (strings[i]!=NULL) {
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if (length == NULL || length[i] < 0) {
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l = strlen(strings[i]);
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strcat(p, strings[i]);
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} else {
|
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l = length[i];
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strncat(p, strings[i], l);
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||||
}
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}
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p += l;
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}
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}
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// claculate the length of a list of strings
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int glUtilsCalcShaderSourceLen( char **strings, GLint *length, GLsizei count)
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{
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int len = 0;
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||||
for (int i = 0; i < count; i++) {
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||||
int l;
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||||
if (length == NULL || length[i] < 0) {
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||||
l = strings[i]!=NULL ? strlen(strings[i]) : 0;
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||||
} else {
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||||
l = length[i];
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||||
}
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||||
len += l;
|
||||
}
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||||
return len;
|
||||
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||||
}
|
||||
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