/*
=============
R_DrawTileImage
This repeats a 64*64 tile graphic to fill the screen around a sized down
refresh window.
=============
*/
void R_DrawTileImage (int32_t x, int32_t y, int32_t w, int32_t h, image_t *image)
{
static const vec4_t color[4] = {
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0}
};
const vec3_t verts[4] = {
{x, y, 0},
{x+w, y, 0},
{x+w, y+h, 0},
{x, y+h, 0}
};
GL_Bind (image->texnum);
rb_vertex = rb_index = 0;
memcpy(&indexArray[rb_index], indices, sizeof(indices));
rb_index = 6;
VA_SetElem2(texCoordArray[0][0], (float)x/(float)image->width, (float)y/(float)image->height);
VA_SetElem2(texCoordArray[0][1], (float)(x+w)/(float)image->width, (float)y/(float)image->height);
VA_SetElem2(texCoordArray[0][2], (float)(x+w)/(float)image->width, (float)(y+h)/(float)image->height);
VA_SetElem2(texCoordArray[0][3], (float)x/(float)image->width, (float)(y+h)/(float)image->height);
memcpy(vertexArray, verts, sizeof(vec3_t) * 4);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
}
/*
=============
R_DrawPic
=============
*/
void R_DrawImage (int32_t x, int32_t y, image_t *gl)
{
int32_t i;
vec2_t texCoord[4], verts[4];
if (scrap_dirty)
Scrap_Upload ();
GL_Bind (gl->texnum);
Vector2Set(texCoord[0], gl->sl, gl->tl);
Vector2Set(texCoord[1], gl->sh, gl->tl);
Vector2Set(texCoord[2], gl->sh, gl->th);
Vector2Set(texCoord[3], gl->sl, gl->th);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+gl->width, y);
Vector2Set(verts[2], x+gl->width, y+gl->height);
Vector2Set(verts[3], x, y+gl->height);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, 1.0);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
}
/*
=============
R_DrawPic
=============
*/
void R_DrawImage (int32_t x, int32_t y, image_t *gl)
{
static const vec4_t color[4] = {
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0}
};
if (scrap_dirty)
Scrap_Upload ();
GL_Bind (gl->texnum);
rb_vertex = rb_index = 0;
memcpy(indexArray, indices, sizeof(indices));
rb_index = 6;
VA_SetElem2(texCoordArray[0][0], gl->sl, gl->tl);
VA_SetElem2(texCoordArray[0][1], gl->sh, gl->tl);
VA_SetElem2(texCoordArray[0][2], gl->sh, gl->th);
VA_SetElem2(texCoordArray[0][3], gl->sl, gl->th);
VA_SetElem3(vertexArray[0], x, y, 0);
VA_SetElem3(vertexArray[1], x+gl->width, y, 0);
VA_SetElem3(vertexArray[2], x+gl->width, y+gl->height, 0);
VA_SetElem3(vertexArray[3], x, y+gl->height, 0);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
}
/*
==============
R_ShadowBlend
Draws projection shadow(s)
from stenciled volume
==============
*/
void R_ShadowBlend (float shadowalpha)
{
const vec4_t color[4] = {
{0, 0, 0, shadowalpha},
{0, 0, 0, shadowalpha},
{0, 0, 0, shadowalpha},
{0, 0, 0, shadowalpha}
};
static const vec3_t verts[4] = {
{10, 100, 100},
{10, -100, 100},
{10, -100, -100},
{10, 100, -100}
};
static const uint32_t indices[6] = {
0, 1, 2, 0, 2, 3
};
if (r_shadows->value != 3)
return;
GL_PushMatrix(GL_MODELVIEW);
GL_LoadMatrix(GL_MODELVIEW, glState.axisRotation);
GL_Disable (GL_ALPHA_TEST);
GL_Enable (GL_BLEND);
GL_Disable (GL_DEPTH_TEST);
GL_DisableTexture(0);
GL_StencilFunc(GL_NOTEQUAL, 0, 255);
glStencilOp (GL_KEEP, GL_KEEP, GL_KEEP);
GL_Enable(GL_STENCIL_TEST);
rb_vertex = rb_index = 0;
memcpy(indexArray, indices, sizeof(indices));
memcpy(vertexArray, verts, sizeof(vec3_t) * 4);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_index += 6;
rb_vertex += 4;
RB_RenderMeshGeneric (false);
GL_PopMatrix(GL_MODELVIEW);
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_Disable (GL_BLEND);
GL_EnableTexture(0);
GL_Enable (GL_DEPTH_TEST);
GL_Disable(GL_STENCIL_TEST);
//GL_Enable (GL_ALPHA_TEST);
glColor4f(1,1,1,1);
}
void R_DrawStretchRaw (int32_t x, int32_t y, int32_t w, int32_t h, const byte *raw, int32_t rawWidth, int32_t rawHeight) //qboolean noDraw)
{
static const vec2_t texCoord[4] = {
{ 0, 0},
{ 1, 0},
{ 1, 1},
{ 0, 1}
};
static const vec4_t color[4] = {
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0}
};
const vec3_t verts[4] = {
{x, y, 0},
{x+w, y, 0},
{x+w, y+h, 0},
{x, y+h, 0}
};
// Make sure everything is flushed if needed
//if (!noDraw)
// RB_RenderMesh();
// Update the texture as appropriate
GL_Bind(glMedia.rawtexture->texnum);
if (rawWidth == glMedia.rawtexture->upload_width && rawHeight == glMedia.rawtexture->upload_height)
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rawWidth, rawHeight, GL_RGBA, GL_UNSIGNED_BYTE, raw);
else {
glMedia.rawtexture->upload_width = rawWidth;
glMedia.rawtexture->upload_height = rawHeight;
glTexImage2D(GL_TEXTURE_2D, 0, gl_raw_tex_solid_format, rawWidth, rawHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, raw);
}
//if (noDraw)
// return;
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
rb_vertex = rb_index = 0;
memcpy(indexArray, indices, sizeof(indices));
rb_index = 6;
// Draw it
memcpy(vertexArray, verts, sizeof(vec3_t) * 4);
memcpy(texCoordArray, texCoord, sizeof(vec2_t) * 4);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
}
/*
=============
R_DrawStretchImage
=============
*/
void R_DrawStretchImage (int32_t x, int32_t y, int32_t w, int32_t h, image_t *gl, float alpha)
{
const vec4_t color[4] = {
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha}
};
const vec3_t verts[4] = {
{x, y, 0},
{x+w, y, 0},
{x+w, y+h, 0},
{x, y+h, 0}
};
if (scrap_dirty)
Scrap_Upload ();
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
rb_vertex = rb_index = 0;
memcpy(&indexArray[rb_index], indices, sizeof(indices));
rb_index = 6;
Vector2Set(texCoordArray[0][0], gl->sl, gl->tl);
Vector2Set(texCoordArray[0][1], gl->sh, gl->tl);
Vector2Set(texCoordArray[0][2], gl->sh, gl->th);
Vector2Set(texCoordArray[0][3], gl->sl, gl->th);
memcpy(vertexArray, verts, sizeof(vec3_t) * 4);
memcpy(colorArray[rb_vertex], color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST);
}
}
/*
=============
R_DrawStretchImage
=============
*/
void R_DrawStretchImage (int32_t x, int32_t y, int32_t w, int32_t h, image_t *gl, float alpha)
{
int32_t i;
vec2_t texCoord[4], verts[4];
if (scrap_dirty)
Scrap_Upload ();
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
Vector2Set(texCoord[0], gl->sl, gl->tl);
Vector2Set(texCoord[1], gl->sh, gl->tl);
Vector2Set(texCoord[2], gl->sh, gl->th);
Vector2Set(texCoord[3], gl->sl, gl->th);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, alpha);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST);
}
}
void R_DrawStretchRaw (int32_t x, int32_t y, int32_t w, int32_t h, const byte *raw, int32_t rawWidth, int32_t rawHeight) //qboolean noDraw)
{
int32_t i;
vec2_t texCoord[4], verts[4];
// Make sure everything is flushed if needed
//if (!noDraw)
// RB_RenderMesh();
// Update the texture as appropriate
GL_Bind(glMedia.rawtexture->texnum);
if (rawWidth == glMedia.rawtexture->upload_width && rawHeight == glMedia.rawtexture->upload_height)
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rawWidth, rawHeight, GL_RGBA, GL_UNSIGNED_BYTE, raw);
else {
glMedia.rawtexture->upload_width = rawWidth;
glMedia.rawtexture->upload_height = rawHeight;
glTexImage2D(GL_TEXTURE_2D, 0, gl_raw_tex_solid_format, rawWidth, rawHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, raw);
}
//if (noDraw)
// return;
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// Draw it
Vector2Set(texCoord[0], 0, 0);
Vector2Set(texCoord[1], 1, 0);
Vector2Set(texCoord[2], 1, 1);
Vector2Set(texCoord[3], 0, 1);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1, 1, 1, 1);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
}
void R_DrawSkyBox (void)
{
int i;
if (skyrotate)
{ // check for no sky at all
for (i=0 ; i<6 ; i++)
if (skymins[0][i] < skymaxs[0][i]
&& skymins[1][i] < skymaxs[1][i])
break;
if (i == 6)
return; // nothing visible
}
qglPushMatrix ();
qglTranslatef (r_origin[0], r_origin[1], r_origin[2]);
qglRotatef (r_newrefdef.time * skyrotate, skyaxis[0], skyaxis[1], skyaxis[2]);
for (i=0; i<6; i++)
{
if (skyrotate)
{ // hack, forces full sky to draw when rotating
skymins[0][i] = -1;
skymins[1][i] = -1;
skymaxs[0][i] = 1;
skymaxs[1][i] = 1;
}
if (skymins[0][i] >= skymaxs[0][i]
|| skymins[1][i] >= skymaxs[1][i])
continue;
GL_Bind (sky_images[skytexorder[i]]->texnum);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
MakeSkyVec (skymins[0][i], skymins[1][i], i);
MakeSkyVec (skymins[0][i], skymaxs[1][i], i);
MakeSkyVec (skymaxs[0][i], skymaxs[1][i], i);
MakeSkyVec (skymaxs[0][i], skymins[1][i], i);
RB_RenderMeshGeneric (true);
}
qglPopMatrix ();
}
/*
======================
R_DrawFill
Fills a box of pixels with a
24-bit color w/ alpha
===========================
*/
void R_DrawFill (int32_t x, int32_t y, int32_t w, int32_t h, int32_t red, int32_t green, int32_t blue, int32_t alpha)
{
const vec_t r = min(red, 255)*DIV255;
const vec_t g = min(green, 255)*DIV255;
const vec_t b = min(blue, 255)*DIV255;
const vec_t a = max(min(alpha, 255), 1)*DIV255;
const vec4_t color[4] = {
{r, g, b, a},
{r, g, b, a},
{r, g, b, a},
{r, g, b, a}
};
const vec3_t verts[4] = {
{x, y, 0},
{x+w, y, 0},
{x+w, y+h, 0},
{x, y+h, 0}
};
// GL_DisableTexture (0);
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
GL_Bind (glMedia.whitetexture->texnum);
rb_vertex = rb_index = 0;
memcpy(&indexArray[rb_index], indices, sizeof(indices));
rb_index = 6;
memcpy(vertexArray, verts, sizeof(vec3_t) * 4);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
GL_DepthMask (true);
GL_Disable (GL_BLEND);
GL_TexEnv (GL_REPLACE);
GL_Enable (GL_ALPHA_TEST);
// GL_EnableTexture (0);
}
/*
================
R_FlushChars
================
*/
void R_FlushChars (void)
{
if (rb_vertex == 0 || rb_index == 0) // nothing to flush
return;
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
GL_Bind(draw_chars->texnum);
RB_RenderMeshGeneric (false);
char_count = 0;
GL_DepthMask (true);
GL_Disable (GL_BLEND);
GL_TexEnv (GL_REPLACE);
GL_Enable (GL_ALPHA_TEST);
}
/*
======================
R_DrawFill
Fills a box of pixels with a
24-bit color w/ alpha
===========================
*/
void R_DrawFill (int32_t x, int32_t y, int32_t w, int32_t h, int32_t red, int32_t green, int32_t blue, int32_t alpha)
{
int32_t i;
vec2_t verts[4];
red = min(red, 255);
green = min(green, 255);
blue = min(blue, 255);
alpha = max(min(alpha, 255), 1);
// GL_DisableTexture (0);
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
GL_Bind (glMedia.whitetexture->texnum);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], red*DIV255, green*DIV255, blue*DIV255, alpha*DIV255);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
GL_DepthMask (true);
GL_Disable (GL_BLEND);
GL_TexEnv (GL_REPLACE);
GL_Enable (GL_ALPHA_TEST);
// GL_EnableTexture (0);
}
/*
=============
R_DrawTileImage
This repeats a 64*64 tile graphic to fill the screen around a sized down
refresh window.
=============
*/
void R_DrawTileImage (int32_t x, int32_t y, int32_t w, int32_t h, image_t *image)
{
int32_t i;
vec2_t texCoord[4], verts[4];
GL_Bind (image->texnum);
/*
Vector2Set(texCoord[0], x/64.0, y/64.0);
Vector2Set(texCoord[1], (x+w)/64.0, y/64.0);
Vector2Set(texCoord[2], (x+w)/64.0, (y+h)/64.0);
Vector2Set(texCoord[3], x/64.0, (y+h)/64.0);
*/
Vector2Set(texCoord[0], (float)x/(float)image->width, (float)y/(float)image->height);
Vector2Set(texCoord[1], (float)(x+w)/(float)image->width, (float)y/(float)image->height);
Vector2Set(texCoord[2], (float)(x+w)/(float)image->width, (float)(y+h)/(float)image->height);
Vector2Set(texCoord[3], (float)x/(float)image->width, (float)(y+h)/(float)image->height);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, 1.0);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
}
/*
=============
R_DrawScaledImage
Psychospaz's code for drawing stretched crosshairs
=============
*/
void R_DrawScaledImage (int32_t x, int32_t y, float scale, float alpha, image_t *gl)
{
float xoff, yoff;
float scale_x, scale_y;
int32_t i;
vec2_t texCoord[4], verts[4];
if (scrap_dirty)
Scrap_Upload ();
// add alpha support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
scale_x = scale_y = scale;
scale_x *= gl->replace_scale_w; // scale down if replacing a pcx image
scale_y *= gl->replace_scale_h; // scale down if replacing a pcx image
Vector2Set(texCoord[0], gl->sl, gl->tl);
Vector2Set(texCoord[1], gl->sh, gl->tl);
Vector2Set(texCoord[2], gl->sh, gl->th);
Vector2Set(texCoord[3], gl->sl, gl->th);
xoff = gl->width*scale_x-gl->width;
yoff = gl->height*scale_y-gl->height;
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+gl->width+xoff, y);
Vector2Set(verts[2], x+gl->width+xoff, y+gl->height+yoff);
Vector2Set(verts[3], x, y+gl->height+yoff);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, alpha);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST); // add alpha support
}
}
/*
=============
R_DrawScaledImage
Psychospaz's code for drawing stretched crosshairs
=============
*/
void R_DrawScaledImage (int32_t x, int32_t y, float scale, float alpha, image_t *gl)
{
float xoff, yoff;
float scale_x, scale_y;
const vec4_t color[4] = {
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha}
};
if (scrap_dirty)
Scrap_Upload ();
// add alpha support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
scale_x = scale_y = scale;
scale_x *= gl->replace_scale_w; // scale down if replacing a pcx image
scale_y *= gl->replace_scale_h; // scale down if replacing a pcx image
xoff = gl->width*scale_x-gl->width;
yoff = gl->height*scale_y-gl->height;
rb_vertex = rb_index = 0;
memcpy(indexArray, indices, sizeof(indices));
rb_index = 6;
VA_SetElem2(texCoordArray[0][0], gl->sl, gl->tl);
VA_SetElem2(texCoordArray[0][1], gl->sh, gl->tl);
VA_SetElem2(texCoordArray[0][2], gl->sh, gl->th);
VA_SetElem2(texCoordArray[0][3], gl->sl, gl->th);
VA_SetElem3(vertexArray[0], x, y, 0);
VA_SetElem3(vertexArray[1], x+gl->width+xoff, y, 0);
VA_SetElem3(vertexArray[2], x+gl->width+xoff, y+gl->height+yoff, 0);
VA_SetElem3(vertexArray[3], x, y+gl->height+yoff, 0);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST); // add alpha support
}
}