eessppeelllloo/vimix
1
0
Fork 0
mirror of https://github.com/brunoherbelin/vimix.git synced 2025-12-06 07:50:00 +01:00
Code Issues Packages Projects Releases Wiki Activity

Define black opengl texture in resource

Browse Source
This commit is contained in:
brunoherbelin
2020-04-04 23:45:18 +02:00
parent 7536df3c13
commit 7bc3a2fb30
7 changed files with 85 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
Resource.cpp
View File

@@ -21,9 +21,26 @@
CMRC_DECLARE(vmix);
std::map<std::string, unsigned int> textureIndex;
std::map<std::string, uint> textureIndex;
std::map<std::string, float> textureAspectRatio;
// opengl texture
uint Resource::getTextureBlack()
{
static uint tex_index_black = 0;
// generate texture (once) & clear
if (tex_index_black == 0) {
glGenTextures(1, &tex_index_black);
glBindTexture( GL_TEXTURE_2D, tex_index_black);
unsigned char clearColor[3] = {0};
// texture with one black pixel
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, GL_RGB, GL_UNSIGNED_BYTE, clearColor);
}
return tex_index_black;
}
const char *Resource::getData(const std::string& path, size_t* out_file_size){
auto fs = cmrc::vmix::get_filesystem();
@@ -66,7 +83,7 @@ std::string Resource::getText(const std::string& path){
#define FOURCC_DXT3 0x33545844 // Equivalent to "DXT3" in ASCII
#define FOURCC_DXT5 0x35545844 // Equivalent to "DXT5" in ASCII
unsigned int Resource::getTextureDDS(const std::string& path, float *aspect_ratio)
uint Resource::getTextureDDS(const std::string& path, float *aspect_ratio)
{
GLuint textureID = 0;
@@ -92,21 +109,21 @@ unsigned int Resource::getTextureDDS(const std::string& path, float *aspect_rati
// get the surface desc = bytes [4 - 127]
const char *header = fp + 4;
unsigned int height = *(unsigned int*)&(header[8 ]);
unsigned int width = *(unsigned int*)&(header[12]);
unsigned int linearSize = *(unsigned int*)&(header[16]);
unsigned int mipMapCount = *(unsigned int*)&(header[24]);
unsigned int fourCC = *(unsigned int*)&(header[80]);
uint height = *(uint*)&(header[8 ]);
uint width = *(uint*)&(header[12]);
uint linearSize = *(uint*)&(header[16]);
uint mipMapCount = *(uint*)&(header[24]);
uint fourCC = *(uint*)&(header[80]);
// how big is it going to be including all mipmaps?
unsigned int bufsize;
uint bufsize;
bufsize = mipMapCount > 1 ? linearSize * 2 : linearSize;
// get the buffer = bytes [128 - ]
const char *buffer = fp + 128;
unsigned int components = (fourCC == FOURCC_DXT1) ? 3 : 4;
unsigned int format = 0;
uint components = (fourCC == FOURCC_DXT1) ? 3 : 4;
uint format = 0;
switch(fourCC)
{
case FOURCC_DXT1:
@@ -139,13 +156,13 @@ unsigned int Resource::getTextureDDS(const std::string& path, float *aspect_rati
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
unsigned int blockSize = (format == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) ? 8 : 16;
unsigned int offset = 0;
uint blockSize = (format == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) ? 8 : 16;
uint offset = 0;
// load the mipmaps
for (unsigned int level = 0; level < mipMapCount && (width || height); ++level)
for (uint level = 0; level < mipMapCount && (width || height); ++level)
{
unsigned int size = ((width+3)/4)*((height+3)/4)*blockSize;
uint size = ((width+3)/4)*((height+3)/4)*blockSize;
glCompressedTexImage2D(GL_TEXTURE_2D, level, format, width, height,
0, size, buffer + offset);
glGenerateMipmap(GL_TEXTURE_2D);
@@ -170,7 +187,7 @@ unsigned int Resource::getTextureDDS(const std::string& path, float *aspect_rati
}
unsigned int Resource::getTextureImage(const std::string& path, float *aspect_ratio)
uint Resource::getTextureImage(const std::string& path, float *aspect_ratio)
{
GLuint textureID = 0;