Commit 37950fc7 authored by gman@chromium.org's avatar gman@chromium.org

Add back in compressed_textures sample.

This used to be in gpu/command_buffer/client/gles2_demo_cc.cc
but was accidentally deleted in r101545. You can view it here
http://src.chromium.org/viewvc/chrome/trunk/src/gpu/command_buffer/client/gles2_demo_cc.cc?view=log&pathrev=101544

I need this for testing compressed texture support in ANGLE

TEST=none
BUG=none

R=jbates@chromium.org


Review URL: http://codereview.chromium.org/8764010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112632 0039d316-1c4b-4281-b951-d872f2087c98
parent 1f19fb36
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <math.h>
#include <stdio.h>
#include <string>
// Some tests for compressed textures.
#include "gpu/demos/framework/demo_factory.h"
#include "gpu/demos/gles2_book/example.h"
namespace gpu {
namespace demos {
namespace {
int g_frameCount = 0;
int g_textureIndex = 0;
int g_numTextures = 1;
GLuint g_textures[5];
int g_textureLoc = -1;
GLuint g_programObject = 0;
GLuint g_worldMatrixLoc = 0;
GLuint g_vbo = 0;
GLsizei g_texCoordOffset = 0;
int g_angle = 0;
void CheckGLError(const char* func_name, int line_no) {
#ifndef NDEBUG
GLenum error = GL_NO_ERROR;
while ((error = glGetError()) != GL_NO_ERROR) {
fprintf(stderr, "GL ERROR in %s at line %d : 0x%04x\n",
func_name, line_no, error);
}
#endif
}
GLuint LoadShader(GLenum type, const char* shaderSrc) {
CheckGLError("LoadShader", __LINE__);
GLuint shader = glCreateShader(type);
if (shader == 0) {
return 0;
}
// Load the shader source
glShaderSource(shader, 1, &shaderSrc, NULL);
// Compile the shader
glCompileShader(shader);
// Check the compile status
GLint value = 0;
glGetShaderiv(shader, GL_COMPILE_STATUS, &value);
if (value == 0) {
char buffer[1024];
GLsizei length = 0;
glGetShaderInfoLog(shader, sizeof(buffer), &length, buffer);
std::string log(buffer, length);
fprintf(stderr, "Error compiling shader: %s\n", log.c_str());
glDeleteShader(shader);
return 0;
}
return shader;
}
void InitShaders() {
static const char* vShaderStr =
"uniform mat4 worldMatrix;\n"
"attribute vec3 g_Position;\n"
"attribute vec2 g_TexCoord0;\n"
"varying vec2 texCoord;\n"
"void main()\n"
"{\n"
" gl_Position = worldMatrix *\n"
" vec4(g_Position.x, g_Position.y, g_Position.z, 1.0);\n"
" texCoord = g_TexCoord0;\n"
"}\n";
static const char* fShaderStr =
"precision mediump float;"
"uniform sampler2D tex;\n"
"varying vec2 texCoord;\n"
"void main()\n"
"{\n"
" gl_FragColor = texture2D(tex, texCoord);\n"
"}\n";
CheckGLError("InitShaders", __LINE__);
GLuint vertexShader = LoadShader(GL_VERTEX_SHADER, vShaderStr);
GLuint fragmentShader = LoadShader(GL_FRAGMENT_SHADER, fShaderStr);
// Create the program object
GLuint programObject = glCreateProgram();
if (programObject == 0) {
fprintf(stderr, "Creating program failed\n");
return;
}
glAttachShader(programObject, vertexShader);
glAttachShader(programObject, fragmentShader);
// Bind g_Position to attribute 0
// Bind g_TexCoord0 to attribute 1
glBindAttribLocation(programObject, 0, "g_Position");
glBindAttribLocation(programObject, 1, "g_TexCoord0");
// Link the program
glLinkProgram(programObject);
// Check the link status
GLint linked = 0;
glGetProgramiv(programObject, GL_LINK_STATUS, &linked);
if (linked == 0) {
char buffer[1024];
GLsizei length = 0;
glGetProgramInfoLog(programObject, sizeof(buffer), &length, buffer);
std::string log(buffer, length);
fprintf(stderr, "Error linking program: %s\n", log.c_str());
glDeleteProgram(programObject);
return;
}
g_programObject = programObject;
g_worldMatrixLoc = glGetUniformLocation(g_programObject, "worldMatrix");
g_textureLoc = glGetUniformLocation(g_programObject, "tex");
glGenBuffers(1, &g_vbo);
glBindBuffer(GL_ARRAY_BUFFER, g_vbo);
static float vertices[] = {
0.25, 0.75, 0.0,
-0.75, 0.75, 0.0,
-0.75, -0.25, 0.0,
0.25, 0.75, 0.0,
-0.75, -0.25, 0.0,
0.25, -0.25, 0.0,
};
static float texCoords[] = {
1.0, 1.0,
0.0, 1.0,
0.0, 0.0,
1.0, 1.0,
0.0, 0.0,
1.0, 0.0,
};
g_texCoordOffset = sizeof(vertices);
glBufferData(GL_ARRAY_BUFFER,
sizeof(vertices) + sizeof(texCoords),
NULL,
GL_STATIC_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertices), vertices);
glBufferSubData(GL_ARRAY_BUFFER, g_texCoordOffset,
sizeof(texCoords), texCoords);
CheckGLError("InitShaders", __LINE__);
}
GLuint CreateCheckerboardTexture() {
CheckGLError("CreateCheckerboardTexture", __LINE__);
static unsigned char pixels[] = {
255, 255, 255,
0, 0, 0,
0, 0, 0,
255, 255, 255,
};
GLuint texture;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, GL_RGB, GL_UNSIGNED_BYTE,
pixels);
CheckGLError("CreateCheckerboardTexture", __LINE__);
return texture;
}
GLuint CreateCompressedTexture(
const void* data,
GLsizeiptr size,
GLenum format,
GLint width,
GLint height) {
GLuint texture;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glCompressedTexImage2D(
GL_TEXTURE_2D, 0, format, width, height, 0, size, data);
CheckGLError("CreateCompressedTxture", __LINE__);
return texture;
}
GLuint LoadDXT1RGBTexture() {
static unsigned char data[] = {
0x00, 0xd0, 0x00, 0xef, 0x00, 0xaa, 0x95, 0xd5,
0x00, 0x90, 0x57, 0xff, 0x00, 0xaa, 0xff, 0x55,
0x00, 0x88, 0x99, 0xff, 0x00, 0xaa, 0xff, 0x55,
0x20, 0xb8, 0xe4, 0xf6, 0x00, 0xaa, 0x5b, 0x5d,
0x21, 0x09, 0xe6, 0x27, 0x15, 0x15, 0x15, 0x15,
0xd7, 0xbd, 0xff, 0xff, 0x56, 0x16, 0x16, 0x56,
0x00, 0x00, 0xff, 0xff, 0x55, 0x00, 0x00, 0x55,
0xe0, 0x08, 0xa9, 0x2f, 0x51, 0x58, 0x56, 0x54,
0xff, 0x07, 0x15, 0x09, 0x40, 0x6a, 0xd5, 0xd5,
0xd7, 0xbd, 0xff, 0xff, 0x56, 0x16, 0x16, 0x16,
0x91, 0x08, 0xff, 0xff, 0x55, 0xff, 0x00, 0x03,
0xfe, 0x07, 0x5b, 0x09, 0x01, 0xa9, 0x55, 0xff,
0x0d, 0x10, 0x18, 0xe8, 0xea, 0x15, 0x95, 0x55,
0x08, 0x88, 0x3c, 0xe7, 0x55, 0x55, 0xff, 0x00,
0x10, 0x20, 0x18, 0xe8, 0xa8, 0x54, 0x56, 0x55,
0x1f, 0x78, 0x15, 0xf8, 0x00, 0xaa, 0x55, 0x55,
};
return CreateCompressedTexture(
data, sizeof(data), GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 16, 16);
}
GLuint LoadDXT1RGBATexture() {
static unsigned char data[] = {
0xff, 0xff, 0x90, 0xee, 0x00, 0xaa, 0xff, 0x55,
0x53, 0xde, 0xdd, 0xff, 0x55, 0x55, 0x00, 0xff,
0xc9, 0xb4, 0xdd, 0xff, 0x55, 0x55, 0xaa, 0xff,
0x6f, 0xee, 0xdd, 0xff, 0x55, 0x55, 0xa8, 0x03,
0x60, 0xa3, 0xa5, 0xe5, 0x55, 0x55, 0xaa, 0x00,
0x00, 0x00, 0x01, 0x00, 0xff, 0xff, 0xff, 0xff,
0x80, 0xab, 0xc2, 0xc4, 0xff, 0x55, 0xaa, 0xff,
0x60, 0x9b, 0xa5, 0xe5, 0x57, 0x56, 0xaa, 0x00,
0x1f, 0xbf, 0xff, 0xf7, 0x55, 0x55, 0xaa, 0x00,
0x00, 0x00, 0x01, 0x00, 0xff, 0xff, 0xff, 0xff,
0xfe, 0xbe, 0x7e, 0xdf, 0xff, 0xaa, 0x55, 0x00,
0xfe, 0xbe, 0xff, 0xf7, 0x54, 0x56, 0xaa, 0x00,
0xfa, 0x4c, 0x7e, 0x9e, 0x55, 0xaa, 0x00, 0x00,
0xbb, 0x2c, 0x98, 0x54, 0xff, 0xff, 0x55, 0xaa,
0xfa, 0x4c, 0x7e, 0x9e, 0x55, 0xaa, 0x00, 0x00,
0xfa, 0x4c, 0x7e, 0x9e, 0x55, 0xaa, 0x00, 0x00,
};
return CreateCompressedTexture(
data, sizeof(data), GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 16, 16);
}
GLuint LoadDXT3RGBATexture() {
static unsigned char data[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xa3, 0x22, 0x03, 0x03, 0x55, 0xff, 0xaa, 0x00,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
0xcf, 0x7c, 0xc3, 0x12, 0x55, 0x55, 0x55, 0x54,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
0x83, 0x1a, 0x03, 0x03, 0x55, 0xff, 0x00, 0x00,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xff,
0xcf, 0x7c, 0xc3, 0x12, 0x55, 0x55, 0x55, 0x54,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xc3, 0x59, 0x63, 0x32, 0x55, 0xff, 0xaa, 0x00,
0x00, 0x00, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00,
0x8f, 0x94, 0x03, 0x4a, 0x54, 0x94, 0x94, 0x54,
0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
0xa3, 0x59, 0x43, 0x2a, 0x55, 0xff, 0xaa, 0x00,
0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff,
0xaf, 0x84, 0x03, 0x42, 0x54, 0x55, 0x55, 0x55,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xc3, 0xa0, 0x83, 0x71, 0x55, 0xff, 0xaa, 0x00,
0x00, 0x00, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40,
0x0f, 0xb4, 0x43, 0x81, 0x54, 0x94, 0x94, 0x94,
0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xc3, 0xa0, 0x83, 0x69, 0x55, 0xff, 0xaa, 0x00,
0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xc3, 0xa0, 0x83, 0x69, 0x55, 0xfd, 0xaa, 0x00,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x23, 0xd0, 0xa3, 0xb0, 0x55, 0xff, 0xaa, 0x00,
0x00, 0x40, 0x00, 0x40, 0xff, 0xff, 0xff, 0xff,
0xf0, 0xc3, 0x43, 0xc0, 0x94, 0x94, 0x55, 0x55,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x23, 0xd0, 0xa3, 0xb0, 0x55, 0xff, 0xaa, 0x00,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x23, 0xd0, 0xa3, 0xb0, 0x55, 0xff, 0xaa, 0x00,
};
return CreateCompressedTexture(
data, sizeof(data), GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 16, 16);
}
GLuint LoadDXT5RGBATexture() {
static unsigned char data[] = {
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x72, 0xdd, 0x03, 0x92, 0x2d, 0x2d, 0x2d, 0x2d,
0x04, 0xfb, 0xff, 0xff, 0xff, 0x49, 0x02, 0xdb,
0x97, 0xf6, 0x32, 0xcd, 0xc0, 0xc0, 0x7b, 0xc0,
0xfb, 0xff, 0x49, 0x92, 0x24, 0x00, 0x60, 0xdb,
0x11, 0xcd, 0x67, 0x82, 0x78, 0x78, 0x5e, 0x78,
0x04, 0xfb, 0xff, 0xff, 0xff, 0xf9, 0x8f, 0xff,
0x2e, 0xac, 0xc4, 0x71, 0x15, 0x15, 0x15, 0x14,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x72, 0xdd, 0x03, 0x92, 0x2d, 0x2d, 0x2d, 0x2d,
0x04, 0x43, 0xb0, 0x0d, 0x3b, 0xb0, 0x03, 0xdb,
0xb8, 0xf6, 0xd5, 0xd5, 0x60, 0x60, 0x60, 0x60,
0xfb, 0x00, 0x49, 0x02, 0x00, 0x00, 0x90, 0x24,
0xb0, 0xbc, 0x26, 0x7a, 0x78, 0x78, 0x78, 0x78,
0x04, 0xf7, 0xf8, 0x9f, 0xff, 0xf9, 0x9f, 0xff,
0x0e, 0xac, 0x83, 0x69, 0x34, 0x35, 0x35, 0x35,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x72, 0xdd, 0x03, 0x92, 0x2d, 0x2d, 0x2d, 0x2d,
0x04, 0x43, 0xb0, 0x0d, 0x3b, 0xb0, 0x03, 0x3b,
0xb8, 0xf6, 0xd5, 0xd5, 0x60, 0x60, 0x60, 0x60,
0xfb, 0xff, 0xb6, 0x0d, 0x00, 0x49, 0x92, 0x24,
0x11, 0xcd, 0x67, 0x82, 0x78, 0x5e, 0x78, 0x78,
0xea, 0xff, 0x4a, 0xd2, 0x24, 0x49, 0x92, 0x24,
0x0e, 0xac, 0xc4, 0x71, 0x15, 0x15, 0x15, 0x15,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x72, 0xdd, 0x03, 0x92, 0x2d, 0x2d, 0x2d, 0x2d,
0xfd, 0x00, 0x49, 0x9c, 0xc4, 0x00, 0x00, 0x00,
0xb8, 0xf6, 0x53, 0xcd, 0xe0, 0xe0, 0x7f, 0xe0,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xf1, 0xcc, 0x46, 0x82, 0x78, 0x78, 0x78, 0x78,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0e, 0xac, 0xc4, 0x71, 0x15, 0x15, 0x15, 0x15,
};
return CreateCompressedTexture(
data, sizeof(data), GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, 16, 16);
}
} // anonymous namespace.
static int stInit(ESContext *esContext) {
CheckGLError("GLFromCPPInit", __LINE__);
g_textures[0] = CreateCheckerboardTexture();
glClearColor(0.f, 0.f, .7f, 1.f);
const char* extensions =
reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS));
if (strstr(extensions, "GL_EXT_texture_compression_dxt1")) {
g_textures[g_numTextures++] = LoadDXT1RGBTexture();
g_textures[g_numTextures++] = LoadDXT1RGBATexture();
}
if (strstr(extensions, "GL_CHROMIUM_texture_compression_dxt3")) {
g_textures[g_numTextures++] = LoadDXT3RGBATexture();
}
if (strstr(extensions, "GL_CHROMIUM_texture_compression_dxt5")) {
g_textures[g_numTextures++] = LoadDXT5RGBATexture();
}
InitShaders();
CheckGLError("GLFromCPPInit", __LINE__);
return 1;
}
static void stDraw (ESContext *esContext) {
const float kPi = 3.1415926535897932384626433832795f;
CheckGLError("GLFromCPPDraw", __LINE__);
// TODO(kbr): base the angle on time rather than on ticks
g_angle = (g_angle + 1) % 360;
// Rotate about the Z axis
GLfloat rot_matrix[16];
GLfloat cos_angle = cosf(static_cast<GLfloat>(g_angle) * kPi / 180.0f);
GLfloat sin_angle = sinf(static_cast<GLfloat>(g_angle) * kPi / 180.0f);
// OpenGL matrices are column-major
rot_matrix[0] = cos_angle;
rot_matrix[1] = sin_angle;
rot_matrix[2] = 0.0f;
rot_matrix[3] = 0.0f;
rot_matrix[4] = -sin_angle;
rot_matrix[5] = cos_angle;
rot_matrix[6] = 0.0f;
rot_matrix[7] = 0.0f;
rot_matrix[8] = 0.0f;
rot_matrix[9] = 0.0f;
rot_matrix[10] = 1.0f;
rot_matrix[11] = 0.0f;
rot_matrix[12] = 0.0f;
rot_matrix[13] = 0.0f;
rot_matrix[14] = 0.0f;
rot_matrix[15] = 1.0f;
g_frameCount++;
if (g_frameCount > 60)
{
g_frameCount = 0;
g_textureIndex = (g_textureIndex + 1) % g_numTextures;
}
// Note: the viewport is automatically set up to cover the entire Canvas.
// Clear the color buffer
glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
CheckGLError("GLFromCPPDraw", __LINE__);
// Use the program object
glUseProgram(g_programObject);
CheckGLError("GLFromCPPDraw", __LINE__);
// Set up the model matrix
glUniformMatrix4fv(g_worldMatrixLoc, 1, GL_FALSE, rot_matrix);
// Load the vertex data
glBindBuffer(GL_ARRAY_BUFFER, g_vbo);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0,
reinterpret_cast<const void*>(g_texCoordOffset));
CheckGLError("GLFromCPPDraw", __LINE__);
// Bind the texture to texture unit 0
glBindTexture(GL_TEXTURE_2D, g_textures[g_textureIndex]);
CheckGLError("GLFromCPPDraw", __LINE__);
// Point the uniform sampler to texture unit 0
glUniform1i(g_textureLoc, 0);
CheckGLError("GLFromCPPDraw", __LINE__);
glDrawArrays(GL_TRIANGLES, 0, 6);
CheckGLError("GLFromCPPDraw", __LINE__);
glFlush();
}
static void stShutDown (ESContext *esContext) {
}
struct STUserData {
int dummy;
};
class CompressedTextureTest : public gles2_book::Example<STUserData> {
public:
CompressedTextureTest() {
RegisterCallbacks(stInit, NULL, stDraw, stShutDown);
}
const wchar_t* Title() const {
return L"Compressed Texture Test";
}
bool IsAnimated() {
return true;
}
};
Demo* CreateDemo() {
return new CompressedTextureTest();
}
} // namespace demos
} // namespace gpu
...@@ -205,6 +205,17 @@ ...@@ -205,6 +205,17 @@
'gles2_book/demo_texture_wrap.cc', 'gles2_book/demo_texture_wrap.cc',
], ],
}, },
{
'target_name': 'compressed_textures_exe',
'type': 'executable',
'dependencies': [
'gpu_demo_framework_exe',
'../../third_party/gles2_book/gles2_book.gyp:es_util',
],
'sources': [
'compressed_textures/compressed_textures.cc',
],
},
], ],
'conditions': [ 'conditions': [
['enable_pepper_demos==1', { ['enable_pepper_demos==1', {
......
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