Move emulator GLES from development.git to sdk.git

The emulator GLES support has two interfaces: a host shared library
interface used by QEMU, and a protocol between the platform and the
host. The host library interface is not versioned; QEMU and the GLES
renderer must match. The protocol on the other hand must be backwards
compatible: a new GLES renderer must support an older platform image.

Thus for branching purposes it makes more sense to put the GLES
renderer in sdk.git, which is branched along with qemu.git for SDK
releases. Platform images will be built against the protocol version
in the platform branch of sdk.git.

Change-Id: I2c3bce627ecfd0a4b3e688d1839fe10755a21e58

1 files changed, 471 insertions, 0 deletions

diff --git a/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp b/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp
new file mode 100644
index 0000000..4b7fc89
--- /dev/null
+++ b/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp
@@ -0,0 +1,471 @@
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#include "glUtils.h"
+#include <string.h>
+#include "ErrorLog.h"
+#include <IOStream.h>
+
+size_t glSizeof(GLenum type)
+{
+    size_t retval = 0;
+    switch(type) {
+    case GL_BYTE:
+    case GL_UNSIGNED_BYTE:
+        retval = 1;
+        break;
+    case GL_SHORT:
+    case GL_UNSIGNED_SHORT:
+    case GL_HALF_FLOAT_OES:
+        retval = 2;
+        break;
+    case GL_INT:
+    case GL_FLOAT:
+    case GL_FIXED:
+    case GL_BOOL:
+        retval =  4;
+        break;
+#ifdef GL_DOUBLE
+    case GL_DOUBLE:
+        retval = 8;
+        break;
+#endif
+    case GL_FLOAT_VEC2:
+    case GL_INT_VEC2:
+    case GL_BOOL_VEC2:
+        retval = 8;
+        break;
+    case GL_INT_VEC3:
+    case GL_BOOL_VEC3:
+    case GL_FLOAT_VEC3:
+        retval = 12;
+        break;
+    case GL_FLOAT_VEC4:
+    case GL_BOOL_VEC4:
+    case GL_INT_VEC4:
+    case GL_FLOAT_MAT2:
+        retval = 16;
+        break;
+    case GL_FLOAT_MAT3:
+        retval = 36;
+        break;
+    case GL_FLOAT_MAT4:
+        retval = 64;
+        break;
+    case GL_SAMPLER_2D:
+    case GL_SAMPLER_CUBE:
+        retval = 4;
+        break;
+    default:
+        ERR("**** ERROR unknown type 0x%x (%s,%d)\n", type, __FUNCTION__,__LINE__);
+    }
+    return retval;
+
+}
+
+size_t glUtilsParamSize(GLenum param)
+{
+    size_t s = 0;
+
+    switch(param)
+    {
+    case GL_DEPTH_TEST:
+    case GL_DEPTH_FUNC:
+    case GL_DEPTH_BITS:
+    case GL_MAX_CLIP_PLANES:
+    case GL_GREEN_BITS:
+    case GL_MAX_MODELVIEW_STACK_DEPTH:
+    case GL_MAX_PROJECTION_STACK_DEPTH:
+    case GL_MAX_TEXTURE_STACK_DEPTH:
+    case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
+    case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
+    case GL_NUM_COMPRESSED_TEXTURE_FORMATS:
+    case GL_MAX_TEXTURE_SIZE:
+    case GL_TEXTURE_GEN_MODE_OES:
+    case GL_TEXTURE_ENV_MODE:
+    case GL_FOG_MODE:
+    case GL_FOG_DENSITY:
+    case GL_FOG_START:
+    case GL_FOG_END:
+    case GL_SPOT_EXPONENT:
+    case GL_CONSTANT_ATTENUATION:
+    case GL_LINEAR_ATTENUATION:
+    case GL_QUADRATIC_ATTENUATION:
+    case GL_SHININESS:
+    case GL_LIGHT_MODEL_TWO_SIDE:
+    case GL_POINT_SIZE:
+    case GL_POINT_SIZE_MIN:
+    case GL_POINT_SIZE_MAX:
+    case GL_POINT_FADE_THRESHOLD_SIZE:
+    case GL_CULL_FACE_MODE:
+    case GL_FRONT_FACE:
+    case GL_SHADE_MODEL:
+    case GL_DEPTH_WRITEMASK:
+    case GL_DEPTH_CLEAR_VALUE:
+    case GL_STENCIL_FAIL:
+    case GL_STENCIL_PASS_DEPTH_FAIL:
+    case GL_STENCIL_PASS_DEPTH_PASS:
+    case GL_STENCIL_REF:
+    case GL_STENCIL_WRITEMASK:
+    case GL_MATRIX_MODE:
+    case GL_MODELVIEW_STACK_DEPTH:
+    case GL_PROJECTION_STACK_DEPTH:
+    case GL_TEXTURE_STACK_DEPTH:
+    case GL_ALPHA_TEST_FUNC:
+    case GL_ALPHA_TEST_REF:
+    case GL_ALPHA_TEST:
+    case GL_BLEND_DST:
+    case GL_BLEND_SRC:
+    case GL_BLEND:
+    case GL_LOGIC_OP_MODE:
+    case GL_SCISSOR_TEST:
+    case GL_MAX_TEXTURE_UNITS:
+    case GL_ACTIVE_TEXTURE:
+    case GL_ALPHA_BITS:
+    case GL_ARRAY_BUFFER_BINDING:
+    case GL_BLUE_BITS:
+    case GL_CLIENT_ACTIVE_TEXTURE:
+    case GL_CLIP_PLANE0:
+    case GL_CLIP_PLANE1:
+    case GL_CLIP_PLANE2:
+    case GL_CLIP_PLANE3:
+    case GL_CLIP_PLANE4:
+    case GL_CLIP_PLANE5:
+    case GL_COLOR_ARRAY:
+    case GL_COLOR_ARRAY_BUFFER_BINDING:
+    case GL_COLOR_ARRAY_SIZE:
+    case GL_COLOR_ARRAY_STRIDE:
+    case GL_COLOR_ARRAY_TYPE:
+    case GL_COLOR_LOGIC_OP:
+    case GL_COLOR_MATERIAL:
+    case GL_PACK_ALIGNMENT:
+    case GL_PERSPECTIVE_CORRECTION_HINT:
+    case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
+    case GL_POINT_SIZE_ARRAY_STRIDE_OES:
+    case GL_POINT_SIZE_ARRAY_TYPE_OES:
+    case GL_POINT_SMOOTH:
+    case GL_POINT_SMOOTH_HINT:
+    case GL_POINT_SPRITE_OES:
+    case GL_COORD_REPLACE_OES:
+    case GL_COMBINE_ALPHA:
+    case GL_SRC0_RGB:
+    case GL_SRC1_RGB:
+    case GL_SRC2_RGB:
+    case GL_OPERAND0_RGB:
+    case GL_OPERAND1_RGB:
+    case GL_OPERAND2_RGB:
+    case GL_SRC0_ALPHA:
+    case GL_SRC1_ALPHA:
+    case GL_SRC2_ALPHA:
+    case GL_OPERAND0_ALPHA:
+    case GL_OPERAND1_ALPHA:
+    case GL_OPERAND2_ALPHA:
+    case GL_RGB_SCALE:
+    case GL_ALPHA_SCALE:
+    case GL_COMBINE_RGB:
+    case GL_POLYGON_OFFSET_FACTOR:
+    case GL_POLYGON_OFFSET_FILL:
+    case GL_POLYGON_OFFSET_UNITS:
+    case GL_RED_BITS:
+    case GL_RESCALE_NORMAL:
+    case GL_SAMPLE_ALPHA_TO_COVERAGE:
+    case GL_SAMPLE_ALPHA_TO_ONE:
+    case GL_SAMPLE_BUFFERS:
+    case GL_SAMPLE_COVERAGE:
+    case GL_SAMPLE_COVERAGE_INVERT:
+    case GL_SAMPLE_COVERAGE_VALUE:
+    case GL_SAMPLES:
+    case GL_STENCIL_BITS:
+    case GL_STENCIL_CLEAR_VALUE:
+    case GL_STENCIL_FUNC:
+    case GL_STENCIL_TEST:
+    case GL_STENCIL_VALUE_MASK:
+    case GL_STENCIL_BACK_FUNC:
+    case GL_STENCIL_BACK_VALUE_MASK:
+    case GL_STENCIL_BACK_REF:
+    case GL_STENCIL_BACK_FAIL:
+    case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
+    case GL_STENCIL_BACK_PASS_DEPTH_PASS:
+    case GL_STENCIL_BACK_WRITEMASK:
+    case GL_TEXTURE_2D:
+    case GL_TEXTURE_BINDING_2D:
+    case GL_TEXTURE_BINDING_CUBE_MAP:
+    case GL_TEXTURE_BINDING_EXTERNAL_OES:
+    case GL_TEXTURE_COORD_ARRAY:
+    case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING:
+    case GL_TEXTURE_COORD_ARRAY_SIZE:
+    case GL_TEXTURE_COORD_ARRAY_STRIDE:
+    case GL_TEXTURE_COORD_ARRAY_TYPE:
+    case GL_UNPACK_ALIGNMENT:
+    case GL_VERTEX_ARRAY:
+    case GL_VERTEX_ARRAY_BUFFER_BINDING:
+    case GL_VERTEX_ARRAY_SIZE:
+    case GL_VERTEX_ARRAY_STRIDE:
+    case GL_VERTEX_ARRAY_TYPE:
+    case GL_SPOT_CUTOFF:
+    case GL_TEXTURE_MIN_FILTER:
+    case GL_TEXTURE_MAG_FILTER:
+    case GL_TEXTURE_WRAP_S:
+    case GL_TEXTURE_WRAP_T:
+    case GL_GENERATE_MIPMAP:
+    case GL_GENERATE_MIPMAP_HINT:
+    case GL_RENDERBUFFER_WIDTH_OES:
+    case GL_RENDERBUFFER_HEIGHT_OES:
+    case GL_RENDERBUFFER_INTERNAL_FORMAT_OES:
+    case GL_RENDERBUFFER_RED_SIZE_OES:
+    case GL_RENDERBUFFER_GREEN_SIZE_OES:
+    case GL_RENDERBUFFER_BLUE_SIZE_OES:
+    case GL_RENDERBUFFER_ALPHA_SIZE_OES:
+    case GL_RENDERBUFFER_DEPTH_SIZE_OES:
+    case GL_RENDERBUFFER_STENCIL_SIZE_OES:
+    case GL_RENDERBUFFER_BINDING:
+    case GL_FRAMEBUFFER_BINDING:
+    case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_OES:
+    case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_OES:
+    case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_OES:
+    case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_OES:
+    case GL_FENCE_STATUS_NV:
+    case GL_FENCE_CONDITION_NV:
+    case GL_TEXTURE_WIDTH_QCOM:
+    case GL_TEXTURE_HEIGHT_QCOM:
+    case GL_TEXTURE_DEPTH_QCOM:
+    case GL_TEXTURE_INTERNAL_FORMAT_QCOM:
+    case GL_TEXTURE_FORMAT_QCOM:
+    case GL_TEXTURE_TYPE_QCOM:
+    case GL_TEXTURE_IMAGE_VALID_QCOM:
+    case GL_TEXTURE_NUM_LEVELS_QCOM:
+    case GL_TEXTURE_TARGET_QCOM:
+    case GL_TEXTURE_OBJECT_VALID_QCOM:
+    case GL_BLEND_EQUATION_RGB_OES:
+    case GL_BLEND_EQUATION_ALPHA_OES:
+    case GL_BLEND_DST_RGB_OES:
+    case GL_BLEND_SRC_RGB_OES:
+    case GL_BLEND_DST_ALPHA_OES:
+    case GL_BLEND_SRC_ALPHA_OES:
+    case GL_MAX_LIGHTS:
+    case GL_SHADER_TYPE:
+    case GL_DELETE_STATUS:
+    case GL_COMPILE_STATUS:
+    case GL_INFO_LOG_LENGTH:
+    case GL_SHADER_SOURCE_LENGTH:
+    case GL_CURRENT_PROGRAM:
+    case GL_LINK_STATUS:
+    case GL_VALIDATE_STATUS:
+    case GL_ATTACHED_SHADERS:
+    case GL_ACTIVE_UNIFORMS:
+    case GL_ACTIVE_ATTRIBUTES:
+    case GL_SUBPIXEL_BITS:
+    case GL_MAX_CUBE_MAP_TEXTURE_SIZE:
+    case GL_NUM_SHADER_BINARY_FORMATS:
+    case GL_SHADER_COMPILER:
+    case GL_MAX_VERTEX_ATTRIBS:
+    case GL_MAX_VERTEX_UNIFORM_VECTORS:
+    case GL_MAX_VARYING_VECTORS:
+    case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
+    case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
+    case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
+    case GL_MAX_RENDERBUFFER_SIZE:
+    case GL_MAX_TEXTURE_IMAGE_UNITS:
+    case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
+    case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
+    case GL_LINE_WIDTH:
+        s = 1;
+        break;
+    case GL_ALIASED_LINE_WIDTH_RANGE:
+    case GL_ALIASED_POINT_SIZE_RANGE:
+    case GL_DEPTH_RANGE:
+    case GL_MAX_VIEWPORT_DIMS:
+    case GL_SMOOTH_POINT_SIZE_RANGE:
+    case GL_SMOOTH_LINE_WIDTH_RANGE:
+        s= 2;
+        break;
+    case GL_SPOT_DIRECTION:
+    case GL_POINT_DISTANCE_ATTENUATION:
+    case GL_CURRENT_NORMAL:
+        s =  3;
+        break;
+    case GL_CURRENT_VERTEX_ATTRIB:
+    case GL_CURRENT_TEXTURE_COORDS:
+    case GL_CURRENT_COLOR:
+    case GL_FOG_COLOR:
+    case GL_AMBIENT:
+    case GL_DIFFUSE:
+    case GL_SPECULAR:
+    case GL_EMISSION:
+    case GL_POSITION:
+    case GL_LIGHT_MODEL_AMBIENT:
+    case GL_TEXTURE_ENV_COLOR:
+    case GL_SCISSOR_BOX:
+    case GL_VIEWPORT:
+    case GL_TEXTURE_CROP_RECT_OES:
+    case GL_COLOR_CLEAR_VALUE:
+    case GL_COLOR_WRITEMASK:
+    case GL_AMBIENT_AND_DIFFUSE:
+    case GL_BLEND_COLOR:
+        s =  4;
+        break;
+    case GL_MODELVIEW_MATRIX:
+    case GL_PROJECTION_MATRIX:
+    case GL_TEXTURE_MATRIX:
+        s = 16;
+    break;
+    default:
+        ERR("glUtilsParamSize: unknow param 0x%08x\n", param);
+        s = 1; // assume 1
+    }
+    return s;
+}
+
+void glUtilsPackPointerData(unsigned char *dst, unsigned char *src,
+                     int size, GLenum type, unsigned int stride,
+                     unsigned int datalen)
+{
+    unsigned int  vsize = size * glSizeof(type);
+    if (stride == 0) stride = vsize;
+
+    if (stride == vsize) {
+        memcpy(dst, src, datalen);
+    } else {
+        for (unsigned int i = 0; i < datalen; i += vsize) {
+            memcpy(dst, src, vsize);
+            dst += vsize;
+            src += stride;
+        }
+    }
+}
+
+void glUtilsWritePackPointerData(void* _stream, unsigned char *src,
+                                 int size, GLenum type, unsigned int stride,
+                                 unsigned int datalen)
+{
+    IOStream* stream = reinterpret_cast<IOStream*>(_stream);
+
+    unsigned int  vsize = size * glSizeof(type);
+    if (stride == 0) stride = vsize;
+
+    if (stride == vsize) {
+        stream->writeFully(src, datalen);
+    } else {
+        for (unsigned int i = 0; i < datalen; i += vsize) {
+            stream->writeFully(src, (size_t)vsize);
+            src += stride;
+        }
+    }
+}
+
+int glUtilsPixelBitSize(GLenum format, GLenum type)
+{
+    int components = 0;
+    int componentsize = 0;
+    int pixelsize = 0;
+    switch(type) {
+    case GL_BYTE:
+    case GL_UNSIGNED_BYTE:
+        componentsize = 8;
+        break;
+    case GL_SHORT:
+    case GL_UNSIGNED_SHORT:
+    case GL_UNSIGNED_SHORT_5_6_5:
+    case GL_UNSIGNED_SHORT_4_4_4_4:
+    case GL_UNSIGNED_SHORT_5_5_5_1:
+    case GL_RGB565_OES:
+    case GL_RGB5_A1_OES:
+    case GL_RGBA4_OES:
+        pixelsize = 16;
+        break;
+    case GL_INT:
+    case GL_UNSIGNED_INT:
+    case GL_FLOAT:
+    case GL_FIXED:
+    case GL_UNSIGNED_INT_24_8_OES:
+        pixelsize = 32;
+        break;
+    default:
+        ERR("glUtilsPixelBitSize: unknown pixel type - assuming pixel data 0\n");
+        componentsize = 0;
+    }
+
+    if (pixelsize == 0) {
+        switch(format) {
+#if 0
+        case GL_RED:
+        case GL_GREEN:
+        case GL_BLUE:
+#endif
+        case GL_ALPHA:
+        case GL_LUMINANCE:
+        case GL_DEPTH_COMPONENT:
+        case GL_DEPTH_STENCIL_OES:
+            components = 1;
+            break;
+        case GL_LUMINANCE_ALPHA:
+            components = 2;
+            break;
+        case GL_RGB:
+#if 0
+        case GL_BGR:
+#endif
+            components = 3;
+            break;
+        case GL_RGBA:
+        case GL_BGRA_EXT:
+            components = 4;
+            break;
+        default:
+            ERR("glUtilsPixelBitSize: unknown pixel format...\n");
+            components = 0;
+        }
+        pixelsize = components * componentsize;
+    }
+
+    return pixelsize;
+}
+
+// pack a list of strings into one.
+void glUtilsPackStrings(char *ptr,  char **strings,  GLint *length, GLsizei count)
+{
+    char *p = ptr;
+    *p = '\0';
+    for (int i = 0; i < count; i++) {
+        int l=0;
+        if (strings[i]!=NULL) {
+            if (length == NULL || length[i] < 0) {
+                l = strlen(strings[i]);
+                strcat(p, strings[i]);
+            } else {
+                l = length[i];
+                strncat(p, strings[i], l);
+            }
+        }
+        p += l;
+    }
+}
+
+// claculate the length of a list of strings
+int glUtilsCalcShaderSourceLen( char **strings,  GLint *length, GLsizei count)
+{
+    int len = 0;
+    for (int i = 0; i < count; i++) {
+        int l;
+        if (length == NULL || length[i] < 0) {
+            l = strings[i]!=NULL ? strlen(strings[i]) : 0;
+        } else {
+            l = length[i];
+        }
+        len += l;
+    }
+    return len;
+
+}